Home / 1,090,840.40-1,636,260.60-292,245.20

Finding the Fourth Proportional to 1,090,840.40, 1,636,260.60 and 292,245.20

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Solution

The fourth proportional to 1,090,840.40, 1,636,260.60 and 292,245.20 is: 438,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,840.40 : 1,636,260.60 = 292,245.20 : x
  2. Step 2: Convert to fraction form
    1,090,840.40/1,636,260.60 = 292,245.20/x
  3. Step 3: Cross multiply
    1,090,840.40x = 1,636,260.60 × 292,245.20
  4. Step 4: Simplify right side
    1,090,840.40x = 478,189,306,299.12
  5. Step 5: Solve for x
    x = 478,189,306,299.12/1,090,840.40
  6. Step 6: Final answer
    x = 438,367.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.