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Finding the Fourth Proportional to 542,345.92, 748,421.15 and 297,322.30

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Solution

The fourth proportional to 542,345.92, 748,421.15 and 297,322.30 is: 410,295.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,345.92 : 748,421.15 = 297,322.30 : x
  2. Step 2: Convert to fraction form
    542,345.92/748,421.15 = 297,322.30/x
  3. Step 3: Cross multiply
    542,345.92x = 748,421.15 × 297,322.30
  4. Step 4: Simplify right side
    542,345.92x = 222,522,296,558.90
  5. Step 5: Solve for x
    x = 222,522,296,558.90/542,345.92
  6. Step 6: Final answer
    x = 410,295.88

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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.