Home / 787,131.19-1,179,174.77-659,253.20

Finding the Fourth Proportional to 787,131.19, 1,179,174.77 and 659,253.20

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Solution

The fourth proportional to 787,131.19, 1,179,174.77 and 659,253.20 is: 987,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,131.19 : 1,179,174.77 = 659,253.20 : x
  2. Step 2: Convert to fraction form
    787,131.19/1,179,174.77 = 659,253.20/x
  3. Step 3: Cross multiply
    787,131.19x = 1,179,174.77 × 659,253.20
  4. Step 4: Simplify right side
    787,131.19x = 777,374,731,289.62
  5. Step 5: Solve for x
    x = 777,374,731,289.62/787,131.19
  6. Step 6: Final answer
    x = 987,605.05

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1.5x scale

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.