Home / 1,138,517.72-1,704,233.64-716,907.86

Finding the Fourth Proportional to 1,138,517.72, 1,704,233.64 and 716,907.86

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Solution

The fourth proportional to 1,138,517.72, 1,704,233.64 and 716,907.86 is: 1,073,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,517.72 : 1,704,233.64 = 716,907.86 : x
  2. Step 2: Convert to fraction form
    1,138,517.72/1,704,233.64 = 716,907.86/x
  3. Step 3: Cross multiply
    1,138,517.72x = 1,704,233.64 × 716,907.86
  4. Step 4: Simplify right side
    1,138,517.72x = 1,221,778,491,792.41
  5. Step 5: Solve for x
    x = 1,221,778,491,792.41/1,138,517.72
  6. Step 6: Final answer
    x = 1,073,130.85

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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.