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Finding the Fourth Proportional to 542,520.03, 748,746.95 and 356,410.65

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Solution

The fourth proportional to 542,520.03, 748,746.95 and 356,410.65 is: 491,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,520.03 : 748,746.95 = 356,410.65 : x
  2. Step 2: Convert to fraction form
    542,520.03/748,746.95 = 356,410.65/x
  3. Step 3: Cross multiply
    542,520.03x = 748,746.95 × 356,410.65
  4. Step 4: Simplify right side
    542,520.03x = 266,861,385,352.96
  5. Step 5: Solve for x
    x = 266,861,385,352.96/542,520.03
  6. Step 6: Final answer
    x = 491,892.23

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Double scale
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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.