Home / 1,399,126.41-2,098,689.63-388,248.69

Finding the Fourth Proportional to 1,399,126.41, 2,098,689.63 and 388,248.69

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Solution

The fourth proportional to 1,399,126.41, 2,098,689.63 and 388,248.69 is: 582,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,126.41 : 2,098,689.63 = 388,248.69 : x
  2. Step 2: Convert to fraction form
    1,399,126.41/2,098,689.63 = 388,248.69/x
  3. Step 3: Cross multiply
    1,399,126.41x = 2,098,689.63 × 388,248.69
  4. Step 4: Simplify right side
    1,399,126.41x = 814,813,499,564.09
  5. Step 5: Solve for x
    x = 814,813,499,564.09/1,399,126.41
  6. Step 6: Final answer
    x = 582,373.04

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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.