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Finding the Fourth Proportional to 517,239.68, 775,827.30 and 247,559.36

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Solution

The fourth proportional to 517,239.68, 775,827.30 and 247,559.36 is: 371,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,239.68 : 775,827.30 = 247,559.36 : x
  2. Step 2: Convert to fraction form
    517,239.68/775,827.30 = 247,559.36/x
  3. Step 3: Cross multiply
    517,239.68x = 775,827.30 × 247,559.36
  4. Step 4: Simplify right side
    517,239.68x = 192,063,309,858.53
  5. Step 5: Solve for x
    x = 192,063,309,858.53/517,239.68
  6. Step 6: Final answer
    x = 371,323.62

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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.