Home / 1,399,106.84-2,098,661.27-388,229.81

Finding the Fourth Proportional to 1,399,106.84, 2,098,661.27 and 388,229.81

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Solution

The fourth proportional to 1,399,106.84, 2,098,661.27 and 388,229.81 is: 582,344.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,106.84 : 2,098,661.27 = 388,229.81 : x
  2. Step 2: Convert to fraction form
    1,399,106.84/2,098,661.27 = 388,229.81/x
  3. Step 3: Cross multiply
    1,399,106.84x = 2,098,661.27 × 388,229.81
  4. Step 4: Simplify right side
    1,399,106.84x = 814,762,853,672.00
  5. Step 5: Solve for x
    x = 814,762,853,672.00/1,399,106.84
  6. Step 6: Final answer
    x = 582,344.99

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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.