Home / 852,276.42-1,278,082.40-319,506.75

Finding the Fourth Proportional to 852,276.42, 1,278,082.40 and 319,506.75

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Solution

The fourth proportional to 852,276.42, 1,278,082.40 and 319,506.75 is: 479,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,276.42 : 1,278,082.40 = 319,506.75 : x
  2. Step 2: Convert to fraction form
    852,276.42/1,278,082.40 = 319,506.75/x
  3. Step 3: Cross multiply
    852,276.42x = 1,278,082.40 × 319,506.75
  4. Step 4: Simplify right side
    852,276.42x = 408,355,952,258.67
  5. Step 5: Solve for x
    x = 408,355,952,258.67/852,276.42
  6. Step 6: Final answer
    x = 479,135.57

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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.