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Finding the Fourth Proportional to 542,006.50, 812,122.81 and 328,126.13

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Solution

The fourth proportional to 542,006.50, 812,122.81 and 328,126.13 is: 491,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,006.50 : 812,122.81 = 328,126.13 : x
  2. Step 2: Convert to fraction form
    542,006.50/812,122.81 = 328,126.13/x
  3. Step 3: Cross multiply
    542,006.50x = 812,122.81 × 328,126.13
  4. Step 4: Simplify right side
    542,006.50x = 266,478,717,462.75
  5. Step 5: Solve for x
    x = 266,478,717,462.75/542,006.50
  6. Step 6: Final answer
    x = 491,652.25

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.