Home / 828,840.40-1,243,260.60-473,890.30

Finding the Fourth Proportional to 828,840.40, 1,243,260.60 and 473,890.30

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Solution

The fourth proportional to 828,840.40, 1,243,260.60 and 473,890.30 is: 710,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,840.40 : 1,243,260.60 = 473,890.30 : x
  2. Step 2: Convert to fraction form
    828,840.40/1,243,260.60 = 473,890.30/x
  3. Step 3: Cross multiply
    828,840.40x = 1,243,260.60 × 473,890.30
  4. Step 4: Simplify right side
    828,840.40x = 589,169,138,712.18
  5. Step 5: Solve for x
    x = 589,169,138,712.18/828,840.40
  6. Step 6: Final answer
    x = 710,835.45

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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.