Home / 674,449.75-1,012,173.54-319,464.57

Finding the Fourth Proportional to 674,449.75, 1,012,173.54 and 319,464.57

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Solution

The fourth proportional to 674,449.75, 1,012,173.54 and 319,464.57 is: 479,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,449.75 : 1,012,173.54 = 319,464.57 : x
  2. Step 2: Convert to fraction form
    674,449.75/1,012,173.54 = 319,464.57/x
  3. Step 3: Cross multiply
    674,449.75x = 1,012,173.54 × 319,464.57
  4. Step 4: Simplify right side
    674,449.75x = 323,353,587,319.14
  5. Step 5: Solve for x
    x = 323,353,587,319.14/674,449.75
  6. Step 6: Final answer
    x = 479,433.18

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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.