Home / 852,436.28-1,278,260.76-319,576.16

Finding the Fourth Proportional to 852,436.28, 1,278,260.76 and 319,576.16

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Solution

The fourth proportional to 852,436.28, 1,278,260.76 and 319,576.16 is: 479,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,436.28 : 1,278,260.76 = 319,576.16 : x
  2. Step 2: Convert to fraction form
    852,436.28/1,278,260.76 = 319,576.16/x
  3. Step 3: Cross multiply
    852,436.28x = 1,278,260.76 × 319,576.16
  4. Step 4: Simplify right side
    852,436.28x = 408,501,665,159.48
  5. Step 5: Solve for x
    x = 408,501,665,159.48/852,436.28
  6. Step 6: Final answer
    x = 479,216.66

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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.