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Finding the Fourth Proportional to 658,846.80, 987,103.80 and 616,856.40

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Solution

The fourth proportional to 658,846.80, 987,103.80 and 616,856.40 is: 924,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,846.80 : 987,103.80 = 616,856.40 : x
  2. Step 2: Convert to fraction form
    658,846.80/987,103.80 = 616,856.40/x
  3. Step 3: Cross multiply
    658,846.80x = 987,103.80 × 616,856.40
  4. Step 4: Simplify right side
    658,846.80x = 608,901,296,494.32
  5. Step 5: Solve for x
    x = 608,901,296,494.32/658,846.80
  6. Step 6: Final answer
    x = 924,192.54

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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.