Home / 497,131.32-686,065.50-282,267.48

Finding the Fourth Proportional to 497,131.32, 686,065.50 and 282,267.48

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Solution

The fourth proportional to 497,131.32, 686,065.50 and 282,267.48 is: 389,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,131.32 : 686,065.50 = 282,267.48 : x
  2. Step 2: Convert to fraction form
    497,131.32/686,065.50 = 282,267.48/x
  3. Step 3: Cross multiply
    497,131.32x = 686,065.50 × 282,267.48
  4. Step 4: Simplify right side
    497,131.32x = 193,653,979,799.94
  5. Step 5: Solve for x
    x = 193,653,979,799.94/497,131.32
  6. Step 6: Final answer
    x = 389,542.91

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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.