Home / 457,837.48-686,624.86-138,020.52

Finding the Fourth Proportional to 457,837.48, 686,624.86 and 138,020.52

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Solution

The fourth proportional to 457,837.48, 686,624.86 and 138,020.52 is: 206,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,837.48 : 686,624.86 = 138,020.52 : x
  2. Step 2: Convert to fraction form
    457,837.48/686,624.86 = 138,020.52/x
  3. Step 3: Cross multiply
    457,837.48x = 686,624.86 × 138,020.52
  4. Step 4: Simplify right side
    457,837.48x = 94,768,320,222.13
  5. Step 5: Solve for x
    x = 94,768,320,222.13/457,837.48
  6. Step 6: Final answer
    x = 206,991.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.