Home / 674,247.15-930,489.27-387,767.43

Finding the Fourth Proportional to 674,247.15, 930,489.27 and 387,767.43

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Solution

The fourth proportional to 674,247.15, 930,489.27 and 387,767.43 is: 535,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,247.15 : 930,489.27 = 387,767.43 : x
  2. Step 2: Convert to fraction form
    674,247.15/930,489.27 = 387,767.43/x
  3. Step 3: Cross multiply
    674,247.15x = 930,489.27 × 387,767.43
  4. Step 4: Simplify right side
    674,247.15x = 360,813,432,870.48
  5. Step 5: Solve for x
    x = 360,813,432,870.48/674,247.15
  6. Step 6: Final answer
    x = 535,135.27

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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.