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Finding the Fourth Proportional to 616,325.72, 850,513.18 and 344,395.85

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Solution

The fourth proportional to 616,325.72, 850,513.18 and 344,395.85 is: 475,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,325.72 : 850,513.18 = 344,395.85 : x
  2. Step 2: Convert to fraction form
    616,325.72/850,513.18 = 344,395.85/x
  3. Step 3: Cross multiply
    616,325.72x = 850,513.18 × 344,395.85
  4. Step 4: Simplify right side
    616,325.72x = 292,913,207,840.32
  5. Step 5: Solve for x
    x = 292,913,207,840.32/616,325.72
  6. Step 6: Final answer
    x = 475,257.15

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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.