Home / 1,681,443.20-2,320,447.56-917,538.68

Finding the Fourth Proportional to 1,681,443.20, 2,320,447.56 and 917,538.68

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Solution

The fourth proportional to 1,681,443.20, 2,320,447.56 and 917,538.68 is: 1,266,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,443.20 : 2,320,447.56 = 917,538.68 : x
  2. Step 2: Convert to fraction form
    1,681,443.20/2,320,447.56 = 917,538.68/x
  3. Step 3: Cross multiply
    1,681,443.20x = 2,320,447.56 × 917,538.68
  4. Step 4: Simplify right side
    1,681,443.20x = 2,129,100,391,211.62
  5. Step 5: Solve for x
    x = 2,129,100,391,211.62/1,681,443.20
  6. Step 6: Final answer
    x = 1,266,233.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.