Home / 852,269.30-1,278,071.71-319,499.63

Finding the Fourth Proportional to 852,269.30, 1,278,071.71 and 319,499.63

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Solution

The fourth proportional to 852,269.30, 1,278,071.71 and 319,499.63 is: 479,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,269.30 : 1,278,071.71 = 319,499.63 : x
  2. Step 2: Convert to fraction form
    852,269.30/1,278,071.71 = 319,499.63/x
  3. Step 3: Cross multiply
    852,269.30x = 1,278,071.71 × 319,499.63
  4. Step 4: Simplify right side
    852,269.30x = 408,343,431,269.36
  5. Step 5: Solve for x
    x = 408,343,431,269.36/852,269.30
  6. Step 6: Final answer
    x = 479,124.89

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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.