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Finding the Fourth Proportional to 581,201.20, 871,801.80 and 508,884.40

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Solution

The fourth proportional to 581,201.20, 871,801.80 and 508,884.40 is: 763,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,201.20 : 871,801.80 = 508,884.40 : x
  2. Step 2: Convert to fraction form
    581,201.20/871,801.80 = 508,884.40/x
  3. Step 3: Cross multiply
    581,201.20x = 871,801.80 × 508,884.40
  4. Step 4: Simplify right side
    581,201.20x = 443,646,335,911.92
  5. Step 5: Solve for x
    x = 443,646,335,911.92/581,201.20
  6. Step 6: Final answer
    x = 763,326.60

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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.