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Finding the Fourth Proportional to 534,107.20, 801,614.40 and 218,790.40

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Solution

The fourth proportional to 534,107.20, 801,614.40 and 218,790.40 is: 328,371.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,107.20 : 801,614.40 = 218,790.40 : x
  2. Step 2: Convert to fraction form
    534,107.20/801,614.40 = 218,790.40/x
  3. Step 3: Cross multiply
    534,107.20x = 801,614.40 × 218,790.40
  4. Step 4: Simplify right side
    534,107.20x = 175,385,535,221.76
  5. Step 5: Solve for x
    x = 175,385,535,221.76/534,107.20
  6. Step 6: Final answer
    x = 328,371.41

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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.