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Finding the Fourth Proportional to 610,962.30, 916,442.64 and 344,601.90

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Solution

The fourth proportional to 610,962.30, 916,442.64 and 344,601.90 is: 516,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,962.30 : 916,442.64 = 344,601.90 : x
  2. Step 2: Convert to fraction form
    610,962.30/916,442.64 = 344,601.90/x
  3. Step 3: Cross multiply
    610,962.30x = 916,442.64 × 344,601.90
  4. Step 4: Simplify right side
    610,962.30x = 315,807,874,985.02
  5. Step 5: Solve for x
    x = 315,807,874,985.02/610,962.30
  6. Step 6: Final answer
    x = 516,902.39

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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.