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Finding the Fourth Proportional to 522,646.07, 721,560.75 and 329,219.58

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Solution

The fourth proportional to 522,646.07, 721,560.75 and 329,219.58 is: 454,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,646.07 : 721,560.75 = 329,219.58 : x
  2. Step 2: Convert to fraction form
    522,646.07/721,560.75 = 329,219.58/x
  3. Step 3: Cross multiply
    522,646.07x = 721,560.75 × 329,219.58
  4. Step 4: Simplify right side
    522,646.07x = 237,551,928,530.76
  5. Step 5: Solve for x
    x = 237,551,928,530.76/522,646.07
  6. Step 6: Final answer
    x = 454,517.78

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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.