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Finding the Fourth Proportional to 898,711.20, 1,348,458.84 and 477,493.92

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Solution

The fourth proportional to 898,711.20, 1,348,458.84 and 477,493.92 is: 716,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,711.20 : 1,348,458.84 = 477,493.92 : x
  2. Step 2: Convert to fraction form
    898,711.20/1,348,458.84 = 477,493.92/x
  3. Step 3: Cross multiply
    898,711.20x = 1,348,458.84 × 477,493.92
  4. Step 4: Simplify right side
    898,711.20x = 643,880,897,470.25
  5. Step 5: Solve for x
    x = 643,880,897,470.25/898,711.20
  6. Step 6: Final answer
    x = 716,449.17

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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.