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Finding the Fourth Proportional to 672,792, 1,009,188 and 273,649.92

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Solution

The fourth proportional to 672,792, 1,009,188 and 273,649.92 is: 410,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,792 : 1,009,188 = 273,649.92 : x
  2. Step 2: Convert to fraction form
    672,792/1,009,188 = 273,649.92/x
  3. Step 3: Cross multiply
    672,792x = 1,009,188 × 273,649.92
  4. Step 4: Simplify right side
    672,792x = 276,164,215,464.96
  5. Step 5: Solve for x
    x = 276,164,215,464.96/672,792
  6. Step 6: Final answer
    x = 410,474.88

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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.