Home / 762,839.24-1,144,422.92-257,412.76

Finding the Fourth Proportional to 762,839.24, 1,144,422.92 and 257,412.76

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Solution

The fourth proportional to 762,839.24, 1,144,422.92 and 257,412.76 is: 386,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,839.24 : 1,144,422.92 = 257,412.76 : x
  2. Step 2: Convert to fraction form
    762,839.24/1,144,422.92 = 257,412.76/x
  3. Step 3: Cross multiply
    762,839.24x = 1,144,422.92 × 257,412.76
  4. Step 4: Simplify right side
    762,839.24x = 294,589,062,444.46
  5. Step 5: Solve for x
    x = 294,589,062,444.46/762,839.24
  6. Step 6: Final answer
    x = 386,174.50

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Double scale
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1.5x scale

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.