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Finding the Fourth Proportional to 522,694.59, 721,538.73 and 353,158.35

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Solution

The fourth proportional to 522,694.59, 721,538.73 and 353,158.35 is: 487,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,694.59 : 721,538.73 = 353,158.35 : x
  2. Step 2: Convert to fraction form
    522,694.59/721,538.73 = 353,158.35/x
  3. Step 3: Cross multiply
    522,694.59x = 721,538.73 × 353,158.35
  4. Step 4: Simplify right side
    522,694.59x = 254,817,427,347.90
  5. Step 5: Solve for x
    x = 254,817,427,347.90/522,694.59
  6. Step 6: Final answer
    x = 487,507.30

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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.