Home / 667,422.48-921,035.69-361,491.25

Finding the Fourth Proportional to 667,422.48, 921,035.69 and 361,491.25

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Solution

The fourth proportional to 667,422.48, 921,035.69 and 361,491.25 is: 498,853.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,422.48 : 921,035.69 = 361,491.25 : x
  2. Step 2: Convert to fraction form
    667,422.48/921,035.69 = 361,491.25/x
  3. Step 3: Cross multiply
    667,422.48x = 921,035.69 × 361,491.25
  4. Step 4: Simplify right side
    667,422.48x = 332,946,342,872.71
  5. Step 5: Solve for x
    x = 332,946,342,872.71/667,422.48
  6. Step 6: Final answer
    x = 498,853.95

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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.