Home / 1,398,833.78-2,098,250.51-387,955.71

Finding the Fourth Proportional to 1,398,833.78, 2,098,250.51 and 387,955.71

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Solution

The fourth proportional to 1,398,833.78, 2,098,250.51 and 387,955.71 is: 581,933.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,833.78 : 2,098,250.51 = 387,955.71 : x
  2. Step 2: Convert to fraction form
    1,398,833.78/2,098,250.51 = 387,955.71/x
  3. Step 3: Cross multiply
    1,398,833.78x = 2,098,250.51 × 387,955.71
  4. Step 4: Simplify right side
    1,398,833.78x = 814,028,266,364.91
  5. Step 5: Solve for x
    x = 814,028,266,364.91/1,398,833.78
  6. Step 6: Final answer
    x = 581,933.52

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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.