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Finding the Fourth Proportional to 777,718.15, 1,165,866.45 and 658,542.45

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Solution

The fourth proportional to 777,718.15, 1,165,866.45 and 658,542.45 is: 987,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,718.15 : 1,165,866.45 = 658,542.45 : x
  2. Step 2: Convert to fraction form
    777,718.15/1,165,866.45 = 658,542.45/x
  3. Step 3: Cross multiply
    777,718.15x = 1,165,866.45 × 658,542.45
  4. Step 4: Simplify right side
    777,718.15x = 767,772,548,355.80
  5. Step 5: Solve for x
    x = 767,772,548,355.80/777,718.15
  6. Step 6: Final answer
    x = 987,211.82

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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.