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Finding the Fourth Proportional to 542,746.17, 748,499.54 and 338,815.91

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Solution

The fourth proportional to 542,746.17, 748,499.54 and 338,815.91 is: 467,259.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,746.17 : 748,499.54 = 338,815.91 : x
  2. Step 2: Convert to fraction form
    542,746.17/748,499.54 = 338,815.91/x
  3. Step 3: Cross multiply
    542,746.17x = 748,499.54 × 338,815.91
  4. Step 4: Simplify right side
    542,746.17x = 253,603,552,956.85
  5. Step 5: Solve for x
    x = 253,603,552,956.85/542,746.17
  6. Step 6: Final answer
    x = 467,259.96

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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.