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Finding the Fourth Proportional to 672,737.76, 1,009,375.92 and 273,409.20

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Solution

The fourth proportional to 672,737.76, 1,009,375.92 and 273,409.20 is: 410,223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,737.76 : 1,009,375.92 = 273,409.20 : x
  2. Step 2: Convert to fraction form
    672,737.76/1,009,375.92 = 273,409.20/x
  3. Step 3: Cross multiply
    672,737.76x = 1,009,375.92 × 273,409.20
  4. Step 4: Simplify right side
    672,737.76x = 275,972,662,786.46
  5. Step 5: Solve for x
    x = 275,972,662,786.46/672,737.76
  6. Step 6: Final answer
    x = 410,223.24

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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.