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Finding the Fourth Proportional to 479,687.77, 719,521.78 and 159,862.86

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Solution

The fourth proportional to 479,687.77, 719,521.78 and 159,862.86 is: 239,791.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,687.77 : 719,521.78 = 159,862.86 : x
  2. Step 2: Convert to fraction form
    479,687.77/719,521.78 = 159,862.86/x
  3. Step 3: Cross multiply
    479,687.77x = 719,521.78 × 159,862.86
  4. Step 4: Simplify right side
    479,687.77x = 115,024,809,583.09
  5. Step 5: Solve for x
    x = 115,024,809,583.09/479,687.77
  6. Step 6: Final answer
    x = 239,791.00

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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.