Home / 1,157,342.43-1,728,974.53-749,209.76

Finding the Fourth Proportional to 1,157,342.43, 1,728,974.53 and 749,209.76

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Solution

The fourth proportional to 1,157,342.43, 1,728,974.53 and 749,209.76 is: 1,119,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,342.43 : 1,728,974.53 = 749,209.76 : x
  2. Step 2: Convert to fraction form
    1,157,342.43/1,728,974.53 = 749,209.76/x
  3. Step 3: Cross multiply
    1,157,342.43x = 1,728,974.53 × 749,209.76
  4. Step 4: Simplify right side
    1,157,342.43x = 1,295,364,582,149.52
  5. Step 5: Solve for x
    x = 1,295,364,582,149.52/1,157,342.43
  6. Step 6: Final answer
    x = 1,119,257.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.