Home / 486,599.20-729,898.80-154,175.20

Finding the Fourth Proportional to 486,599.20, 729,898.80 and 154,175.20

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Solution

The fourth proportional to 486,599.20, 729,898.80 and 154,175.20 is: 231,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,599.20 : 729,898.80 = 154,175.20 : x
  2. Step 2: Convert to fraction form
    486,599.20/729,898.80 = 154,175.20/x
  3. Step 3: Cross multiply
    486,599.20x = 729,898.80 × 154,175.20
  4. Step 4: Simplify right side
    486,599.20x = 112,532,293,469.76
  5. Step 5: Solve for x
    x = 112,532,293,469.76/486,599.20
  6. Step 6: Final answer
    x = 231,262.80

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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.