Home / 486,547.20-729,890.55-149,616.15

Finding the Fourth Proportional to 486,547.20, 729,890.55 and 149,616.15

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Solution

The fourth proportional to 486,547.20, 729,890.55 and 149,616.15 is: 224,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,547.20 : 729,890.55 = 149,616.15 : x
  2. Step 2: Convert to fraction form
    486,547.20/729,890.55 = 149,616.15/x
  3. Step 3: Cross multiply
    486,547.20x = 729,890.55 × 149,616.15
  4. Step 4: Simplify right side
    486,547.20x = 109,203,414,012.38
  5. Step 5: Solve for x
    x = 109,203,414,012.38/486,547.20
  6. Step 6: Final answer
    x = 224,445.67

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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.