Home / 1,399,112.61-2,098,434.15-388,337.28

Finding the Fourth Proportional to 1,399,112.61, 2,098,434.15 and 388,337.28

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Solution

The fourth proportional to 1,399,112.61, 2,098,434.15 and 388,337.28 is: 582,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,112.61 : 2,098,434.15 = 388,337.28 : x
  2. Step 2: Convert to fraction form
    1,399,112.61/2,098,434.15 = 388,337.28/x
  3. Step 3: Cross multiply
    1,399,112.61x = 2,098,434.15 × 388,337.28
  4. Step 4: Simplify right side
    1,399,112.61x = 814,900,210,070.11
  5. Step 5: Solve for x
    x = 814,900,210,070.11/1,399,112.61
  6. Step 6: Final answer
    x = 582,440.76

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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.