Home / 1,681,531.13-2,320,562.16-917,633.90

Finding the Fourth Proportional to 1,681,531.13, 2,320,562.16 and 917,633.90

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Solution

The fourth proportional to 1,681,531.13, 2,320,562.16 and 917,633.90 is: 1,266,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,531.13 : 2,320,562.16 = 917,633.90 : x
  2. Step 2: Convert to fraction form
    1,681,531.13/2,320,562.16 = 917,633.90/x
  3. Step 3: Cross multiply
    1,681,531.13x = 2,320,562.16 × 917,633.90
  4. Step 4: Simplify right side
    1,681,531.13x = 2,129,426,493,470.41
  5. Step 5: Solve for x
    x = 2,129,426,493,470.41/1,681,531.13
  6. Step 6: Final answer
    x = 1,266,361.63

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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.