Home / 1,090,809.40-1,636,214.10-292,214.20

Finding the Fourth Proportional to 1,090,809.40, 1,636,214.10 and 292,214.20

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Solution

The fourth proportional to 1,090,809.40, 1,636,214.10 and 292,214.20 is: 438,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,809.40 : 1,636,214.10 = 292,214.20 : x
  2. Step 2: Convert to fraction form
    1,090,809.40/1,636,214.10 = 292,214.20/x
  3. Step 3: Cross multiply
    1,090,809.40x = 1,636,214.10 × 292,214.20
  4. Step 4: Simplify right side
    1,090,809.40x = 478,124,994,260.22
  5. Step 5: Solve for x
    x = 478,124,994,260.22/1,090,809.40
  6. Step 6: Final answer
    x = 438,321.30

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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.