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Finding the Fourth Proportional to 555,455.68, 766,513.13 and 329,101.18

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Solution

The fourth proportional to 555,455.68, 766,513.13 and 329,101.18 is: 454,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,455.68 : 766,513.13 = 329,101.18 : x
  2. Step 2: Convert to fraction form
    555,455.68/766,513.13 = 329,101.18/x
  3. Step 3: Cross multiply
    555,455.68x = 766,513.13 × 329,101.18
  4. Step 4: Simplify right side
    555,455.68x = 252,260,372,006.71
  5. Step 5: Solve for x
    x = 252,260,372,006.71/555,455.68
  6. Step 6: Final answer
    x = 454,150.32

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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.