Home / 852,269.42-1,278,071.89-319,499.75

Finding the Fourth Proportional to 852,269.42, 1,278,071.89 and 319,499.75

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Solution

The fourth proportional to 852,269.42, 1,278,071.89 and 319,499.75 is: 479,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,269.42 : 1,278,071.89 = 319,499.75 : x
  2. Step 2: Convert to fraction form
    852,269.42/1,278,071.89 = 319,499.75/x
  3. Step 3: Cross multiply
    852,269.42x = 1,278,071.89 × 319,499.75
  4. Step 4: Simplify right side
    852,269.42x = 408,343,649,337.03
  5. Step 5: Solve for x
    x = 408,343,649,337.03/852,269.42
  6. Step 6: Final answer
    x = 479,125.07

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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.