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Finding the Fourth Proportional to 486,028.92, 729,069.30 and 153,579

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Solution

The fourth proportional to 486,028.92, 729,069.30 and 153,579 is: 230,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,028.92 : 729,069.30 = 153,579 : x
  2. Step 2: Convert to fraction form
    486,028.92/729,069.30 = 153,579/x
  3. Step 3: Cross multiply
    486,028.92x = 729,069.30 × 153,579
  4. Step 4: Simplify right side
    486,028.92x = 111,969,734,024.70
  5. Step 5: Solve for x
    x = 111,969,734,024.70/486,028.92
  6. Step 6: Final answer
    x = 230,376.69

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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.