Home / 674,331.33-1,011,994.74-319,344.78

Finding the Fourth Proportional to 674,331.33, 1,011,994.74 and 319,344.78

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Solution

The fourth proportional to 674,331.33, 1,011,994.74 and 319,344.78 is: 479,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,331.33 : 1,011,994.74 = 319,344.78 : x
  2. Step 2: Convert to fraction form
    674,331.33/1,011,994.74 = 319,344.78/x
  3. Step 3: Cross multiply
    674,331.33x = 1,011,994.74 × 319,344.78
  4. Step 4: Simplify right side
    674,331.33x = 323,175,237,606.46
  5. Step 5: Solve for x
    x = 323,175,237,606.46/674,331.33
  6. Step 6: Final answer
    x = 479,252.89

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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.