Home / 726,523.08-1,002,586.14-420,612.36

Finding the Fourth Proportional to 726,523.08, 1,002,586.14 and 420,612.36

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Solution

The fourth proportional to 726,523.08, 1,002,586.14 and 420,612.36 is: 580,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,523.08 : 1,002,586.14 = 420,612.36 : x
  2. Step 2: Convert to fraction form
    726,523.08/1,002,586.14 = 420,612.36/x
  3. Step 3: Cross multiply
    726,523.08x = 1,002,586.14 × 420,612.36
  4. Step 4: Simplify right side
    726,523.08x = 421,700,122,448.69
  5. Step 5: Solve for x
    x = 421,700,122,448.69/726,523.08
  6. Step 6: Final answer
    x = 580,435.96

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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.