Home / 727,631.92-1,004,185.12-421,787.26

Finding the Fourth Proportional to 727,631.92, 1,004,185.12 and 421,787.26

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Solution

The fourth proportional to 727,631.92, 1,004,185.12 and 421,787.26 is: 582,097.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,631.92 : 1,004,185.12 = 421,787.26 : x
  2. Step 2: Convert to fraction form
    727,631.92/1,004,185.12 = 421,787.26/x
  3. Step 3: Cross multiply
    727,631.92x = 1,004,185.12 × 421,787.26
  4. Step 4: Simplify right side
    727,631.92x = 423,552,490,297.57
  5. Step 5: Solve for x
    x = 423,552,490,297.57/727,631.92
  6. Step 6: Final answer
    x = 582,097.18

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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.