Home / 486,642.18-729,965.01-149,680.57

Finding the Fourth Proportional to 486,642.18, 729,965.01 and 149,680.57

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Solution

The fourth proportional to 486,642.18, 729,965.01 and 149,680.57 is: 224,521.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,642.18 : 729,965.01 = 149,680.57 : x
  2. Step 2: Convert to fraction form
    486,642.18/729,965.01 = 149,680.57/x
  3. Step 3: Cross multiply
    486,642.18x = 729,965.01 × 149,680.57
  4. Step 4: Simplify right side
    486,642.18x = 109,261,574,800.95
  5. Step 5: Solve for x
    x = 109,261,574,800.95/486,642.18
  6. Step 6: Final answer
    x = 224,521.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.