Home / 1,398,834.47-2,098,251.57-387,956.39

Finding the Fourth Proportional to 1,398,834.47, 2,098,251.57 and 387,956.39

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Solution

The fourth proportional to 1,398,834.47, 2,098,251.57 and 387,956.39 is: 581,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,834.47 : 2,098,251.57 = 387,956.39 : x
  2. Step 2: Convert to fraction form
    1,398,834.47/2,098,251.57 = 387,956.39/x
  3. Step 3: Cross multiply
    1,398,834.47x = 2,098,251.57 × 387,956.39
  4. Step 4: Simplify right side
    1,398,834.47x = 814,030,109,803.23
  5. Step 5: Solve for x
    x = 814,030,109,803.23/1,398,834.47
  6. Step 6: Final answer
    x = 581,934.55

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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.