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Finding the Fourth Proportional to 542,330.62, 812,437.04 and 257,616.02

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Solution

The fourth proportional to 542,330.62, 812,437.04 and 257,616.02 is: 385,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,330.62 : 812,437.04 = 257,616.02 : x
  2. Step 2: Convert to fraction form
    542,330.62/812,437.04 = 257,616.02/x
  3. Step 3: Cross multiply
    542,330.62x = 812,437.04 × 257,616.02
  4. Step 4: Simplify right side
    542,330.62x = 209,296,796,745.38
  5. Step 5: Solve for x
    x = 209,296,796,745.38/542,330.62
  6. Step 6: Final answer
    x = 385,921.04

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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.