Home / 494,921.92-742,321.86-210,726.76

Finding the Fourth Proportional to 494,921.92, 742,321.86 and 210,726.76

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Solution

The fourth proportional to 494,921.92, 742,321.86 and 210,726.76 is: 316,064.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,921.92 : 742,321.86 = 210,726.76 : x
  2. Step 2: Convert to fraction form
    494,921.92/742,321.86 = 210,726.76/x
  3. Step 3: Cross multiply
    494,921.92x = 742,321.86 × 210,726.76
  4. Step 4: Simplify right side
    494,921.92x = 156,427,080,434.97
  5. Step 5: Solve for x
    x = 156,427,080,434.97/494,921.92
  6. Step 6: Final answer
    x = 316,064.16

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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.