Home / 674,134-1,011,496.20-319,401.52

Finding the Fourth Proportional to 674,134, 1,011,496.20 and 319,401.52

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Solution

The fourth proportional to 674,134, 1,011,496.20 and 319,401.52 is: 479,242.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,134 : 1,011,496.20 = 319,401.52 : x
  2. Step 2: Convert to fraction form
    674,134/1,011,496.20 = 319,401.52/x
  3. Step 3: Cross multiply
    674,134x = 1,011,496.20 × 319,401.52
  4. Step 4: Simplify right side
    674,134x = 323,073,423,754.22
  5. Step 5: Solve for x
    x = 323,073,423,754.22/674,134
  6. Step 6: Final answer
    x = 479,242.14

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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.