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Finding the Fourth Proportional to 700,700.73, 966,966.97 and 378,410.80

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Solution

The fourth proportional to 700,700.73, 966,966.97 and 378,410.80 is: 522,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,700.73 : 966,966.97 = 378,410.80 : x
  2. Step 2: Convert to fraction form
    700,700.73/966,966.97 = 378,410.80/x
  3. Step 3: Cross multiply
    700,700.73x = 966,966.97 × 378,410.80
  4. Step 4: Simplify right side
    700,700.73x = 365,910,744,691.28
  5. Step 5: Solve for x
    x = 365,910,744,691.28/700,700.73
  6. Step 6: Final answer
    x = 522,206.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.