Home / 392,764.17-589,145.14-104,575.78

Finding the Fourth Proportional to 392,764.17, 589,145.14 and 104,575.78

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Solution

The fourth proportional to 392,764.17, 589,145.14 and 104,575.78 is: 156,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,764.17 : 589,145.14 = 104,575.78 : x
  2. Step 2: Convert to fraction form
    392,764.17/589,145.14 = 104,575.78/x
  3. Step 3: Cross multiply
    392,764.17x = 589,145.14 × 104,575.78
  4. Step 4: Simplify right side
    392,764.17x = 61,610,313,415.86
  5. Step 5: Solve for x
    x = 61,610,313,415.86/392,764.17
  6. Step 6: Final answer
    x = 156,863.37

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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.