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Finding the Fourth Proportional to 522,656.24, 721,574.80 and 329,229.76

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Solution

The fourth proportional to 522,656.24, 721,574.80 and 329,229.76 is: 454,531.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,656.24 : 721,574.80 = 329,229.76 : x
  2. Step 2: Convert to fraction form
    522,656.24/721,574.80 = 329,229.76/x
  3. Step 3: Cross multiply
    522,656.24x = 721,574.80 × 329,229.76
  4. Step 4: Simplify right side
    522,656.24x = 237,563,898,226.05
  5. Step 5: Solve for x
    x = 237,563,898,226.05/522,656.24
  6. Step 6: Final answer
    x = 454,531.83

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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.