Home / 674,329.77-1,011,992.40-319,343.22

Finding the Fourth Proportional to 674,329.77, 1,011,992.40 and 319,343.22

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Solution

The fourth proportional to 674,329.77, 1,011,992.40 and 319,343.22 is: 479,250.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,329.77 : 1,011,992.40 = 319,343.22 : x
  2. Step 2: Convert to fraction form
    674,329.77/1,011,992.40 = 319,343.22/x
  3. Step 3: Cross multiply
    674,329.77x = 1,011,992.40 × 319,343.22
  4. Step 4: Simplify right side
    674,329.77x = 323,172,911,631.53
  5. Step 5: Solve for x
    x = 323,172,911,631.53/674,329.77
  6. Step 6: Final answer
    x = 479,250.55

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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.