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Finding the Fourth Proportional to 616,728.40, 925,092.60 and 351,007.90

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Solution

The fourth proportional to 616,728.40, 925,092.60 and 351,007.90 is: 526,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,728.40 : 925,092.60 = 351,007.90 : x
  2. Step 2: Convert to fraction form
    616,728.40/925,092.60 = 351,007.90/x
  3. Step 3: Cross multiply
    616,728.40x = 925,092.60 × 351,007.90
  4. Step 4: Simplify right side
    616,728.40x = 324,714,810,831.54
  5. Step 5: Solve for x
    x = 324,714,810,831.54/616,728.40
  6. Step 6: Final answer
    x = 526,511.85

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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.