Home / 1,386,721.67-2,080,187.07-414,008.95

Finding the Fourth Proportional to 1,386,721.67, 2,080,187.07 and 414,008.95

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Solution

The fourth proportional to 1,386,721.67, 2,080,187.07 and 414,008.95 is: 621,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,721.67 : 2,080,187.07 = 414,008.95 : x
  2. Step 2: Convert to fraction form
    1,386,721.67/2,080,187.07 = 414,008.95/x
  3. Step 3: Cross multiply
    1,386,721.67x = 2,080,187.07 × 414,008.95
  4. Step 4: Simplify right side
    1,386,721.67x = 861,216,058,279.90
  5. Step 5: Solve for x
    x = 861,216,058,279.90/1,386,721.67
  6. Step 6: Final answer
    x = 621,044.64

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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.