Home / 787,132.98-1,179,177.45-659,254.98

Finding the Fourth Proportional to 787,132.98, 1,179,177.45 and 659,254.98

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Solution

The fourth proportional to 787,132.98, 1,179,177.45 and 659,254.98 is: 987,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,132.98 : 1,179,177.45 = 659,254.98 : x
  2. Step 2: Convert to fraction form
    787,132.98/1,179,177.45 = 659,254.98/x
  3. Step 3: Cross multiply
    787,132.98x = 1,179,177.45 × 659,254.98
  4. Step 4: Simplify right side
    787,132.98x = 777,378,606,216.20
  5. Step 5: Solve for x
    x = 777,378,606,216.20/787,132.98
  6. Step 6: Final answer
    x = 987,607.72

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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.