Home / 486,498.18-729,817.05-149,567.12

Finding the Fourth Proportional to 486,498.18, 729,817.05 and 149,567.12

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Solution

The fourth proportional to 486,498.18, 729,817.05 and 149,567.12 is: 224,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,498.18 : 729,817.05 = 149,567.12 : x
  2. Step 2: Convert to fraction form
    486,498.18/729,817.05 = 149,567.12/x
  3. Step 3: Cross multiply
    486,498.18x = 729,817.05 × 149,567.12
  4. Step 4: Simplify right side
    486,498.18x = 109,156,637,207.91
  5. Step 5: Solve for x
    x = 109,156,637,207.91/486,498.18
  6. Step 6: Final answer
    x = 224,372.14

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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.