Home / 782,257.30-1,173,723.14-422,356.72

Finding the Fourth Proportional to 782,257.30, 1,173,723.14 and 422,356.72

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Solution

The fourth proportional to 782,257.30, 1,173,723.14 and 422,356.72 is: 633,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,257.30 : 1,173,723.14 = 422,356.72 : x
  2. Step 2: Convert to fraction form
    782,257.30/1,173,723.14 = 422,356.72/x
  3. Step 3: Cross multiply
    782,257.30x = 1,173,723.14 × 422,356.72
  4. Step 4: Simplify right side
    782,257.30x = 495,729,855,598.50
  5. Step 5: Solve for x
    x = 495,729,855,598.50/782,257.30
  6. Step 6: Final answer
    x = 633,717.14

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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.