Home / 883,863.66-1,218,661.75-687,687.18

Finding the Fourth Proportional to 883,863.66, 1,218,661.75 and 687,687.18

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Solution

The fourth proportional to 883,863.66, 1,218,661.75 and 687,687.18 is: 948,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,863.66 : 1,218,661.75 = 687,687.18 : x
  2. Step 2: Convert to fraction form
    883,863.66/1,218,661.75 = 687,687.18/x
  3. Step 3: Cross multiply
    883,863.66x = 1,218,661.75 × 687,687.18
  4. Step 4: Simplify right side
    883,863.66x = 838,058,063,950.58
  5. Step 5: Solve for x
    x = 838,058,063,950.58/883,863.66
  6. Step 6: Final answer
    x = 948,175.72

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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.