Home / 497,378.26-686,360.55-282,517.66

Finding the Fourth Proportional to 497,378.26, 686,360.55 and 282,517.66

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Solution

The fourth proportional to 497,378.26, 686,360.55 and 282,517.66 is: 389,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,378.26 : 686,360.55 = 282,517.66 : x
  2. Step 2: Convert to fraction form
    497,378.26/686,360.55 = 282,517.66/x
  3. Step 3: Cross multiply
    497,378.26x = 686,360.55 × 282,517.66
  4. Step 4: Simplify right side
    497,378.26x = 193,908,976,502.31
  5. Step 5: Solve for x
    x = 193,908,976,502.31/497,378.26
  6. Step 6: Final answer
    x = 389,862.19

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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.