Home / 787,150.49-1,179,977.36-307,685.59

Finding the Fourth Proportional to 787,150.49, 1,179,977.36 and 307,685.59

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Solution

The fourth proportional to 787,150.49, 1,179,977.36 and 307,685.59 is: 461,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,150.49 : 1,179,977.36 = 307,685.59 : x
  2. Step 2: Convert to fraction form
    787,150.49/1,179,977.36 = 307,685.59/x
  3. Step 3: Cross multiply
    787,150.49x = 1,179,977.36 × 307,685.59
  4. Step 4: Simplify right side
    787,150.49x = 363,062,025,709.87
  5. Step 5: Solve for x
    x = 363,062,025,709.87/787,150.49
  6. Step 6: Final answer
    x = 461,235.85

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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.