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Finding the Fourth Proportional to 479,972.83, 720,000.59 and 124,987.49

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Solution

The fourth proportional to 479,972.83, 720,000.59 and 124,987.49 is: 187,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,972.83 : 720,000.59 = 124,987.49 : x
  2. Step 2: Convert to fraction form
    479,972.83/720,000.59 = 124,987.49/x
  3. Step 3: Cross multiply
    479,972.83x = 720,000.59 × 124,987.49
  4. Step 4: Simplify right side
    479,972.83x = 89,991,067,717.68
  5. Step 5: Solve for x
    x = 89,991,067,717.68/479,972.83
  6. Step 6: Final answer
    x = 187,492.00

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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.