Home / 738,331.20-1,107,496.80-422,528.40

Finding the Fourth Proportional to 738,331.20, 1,107,496.80 and 422,528.40

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Solution

The fourth proportional to 738,331.20, 1,107,496.80 and 422,528.40 is: 633,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,331.20 : 1,107,496.80 = 422,528.40 : x
  2. Step 2: Convert to fraction form
    738,331.20/1,107,496.80 = 422,528.40/x
  3. Step 3: Cross multiply
    738,331.20x = 1,107,496.80 × 422,528.40
  4. Step 4: Simplify right side
    738,331.20x = 467,948,850,909.12
  5. Step 5: Solve for x
    x = 467,948,850,909.12/738,331.20
  6. Step 6: Final answer
    x = 633,792.60

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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.