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Finding the Fourth Proportional to 539,892.30, 808,672.05 and 469,908.30

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Solution

The fourth proportional to 539,892.30, 808,672.05 and 469,908.30 is: 703,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,892.30 : 808,672.05 = 469,908.30 : x
  2. Step 2: Convert to fraction form
    539,892.30/808,672.05 = 469,908.30/x
  3. Step 3: Cross multiply
    539,892.30x = 808,672.05 × 469,908.30
  4. Step 4: Simplify right side
    539,892.30x = 380,001,708,273.02
  5. Step 5: Solve for x
    x = 380,001,708,273.02/539,892.30
  6. Step 6: Final answer
    x = 703,847.25

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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.