Home / 727,500.62-1,003,951.06-421,754.21

Finding the Fourth Proportional to 727,500.62, 1,003,951.06 and 421,754.21

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Solution

The fourth proportional to 727,500.62, 1,003,951.06 and 421,754.21 is: 582,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,500.62 : 1,003,951.06 = 421,754.21 : x
  2. Step 2: Convert to fraction form
    727,500.62/1,003,951.06 = 421,754.21/x
  3. Step 3: Cross multiply
    727,500.62x = 1,003,951.06 × 421,754.21
  4. Step 4: Simplify right side
    727,500.62x = 423,420,583,879.64
  5. Step 5: Solve for x
    x = 423,420,583,879.64/727,500.62
  6. Step 6: Final answer
    x = 582,020.92

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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.