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Finding the Fourth Proportional to 484,446.40, 726,799.20 and 344,478.40

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Solution

The fourth proportional to 484,446.40, 726,799.20 and 344,478.40 is: 516,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,446.40 : 726,799.20 = 344,478.40 : x
  2. Step 2: Convert to fraction form
    484,446.40/726,799.20 = 344,478.40/x
  3. Step 3: Cross multiply
    484,446.40x = 726,799.20 × 344,478.40
  4. Step 4: Simplify right side
    484,446.40x = 250,366,625,537.28
  5. Step 5: Solve for x
    x = 250,366,625,537.28/484,446.40
  6. Step 6: Final answer
    x = 516,809.76

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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.