Home / 726,264.66-1,002,174.87-420,280.26

Finding the Fourth Proportional to 726,264.66, 1,002,174.87 and 420,280.26

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Solution

The fourth proportional to 726,264.66, 1,002,174.87 and 420,280.26 is: 579,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,264.66 : 1,002,174.87 = 420,280.26 : x
  2. Step 2: Convert to fraction form
    726,264.66/1,002,174.87 = 420,280.26/x
  3. Step 3: Cross multiply
    726,264.66x = 1,002,174.87 × 420,280.26
  4. Step 4: Simplify right side
    726,264.66x = 421,194,314,929.07
  5. Step 5: Solve for x
    x = 421,194,314,929.07/726,264.66
  6. Step 6: Final answer
    x = 579,946.04

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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.