Home / 674,172.18-1,010,867.04-319,183.20

Finding the Fourth Proportional to 674,172.18, 1,010,867.04 and 319,183.20

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Solution

The fourth proportional to 674,172.18, 1,010,867.04 and 319,183.20 is: 478,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,172.18 : 1,010,867.04 = 319,183.20 : x
  2. Step 2: Convert to fraction form
    674,172.18/1,010,867.04 = 319,183.20/x
  3. Step 3: Cross multiply
    674,172.18x = 1,010,867.04 × 319,183.20
  4. Step 4: Simplify right side
    674,172.18x = 322,651,776,601.73
  5. Step 5: Solve for x
    x = 322,651,776,601.73/674,172.18
  6. Step 6: Final answer
    x = 478,589.57

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1.5x scale

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.