Home / 852,369.08-1,278,221.20-319,599.80

Finding the Fourth Proportional to 852,369.08, 1,278,221.20 and 319,599.80

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Solution

The fourth proportional to 852,369.08, 1,278,221.20 and 319,599.80 is: 479,275.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,369.08 : 1,278,221.20 = 319,599.80 : x
  2. Step 2: Convert to fraction form
    852,369.08/1,278,221.20 = 319,599.80/x
  3. Step 3: Cross multiply
    852,369.08x = 1,278,221.20 × 319,599.80
  4. Step 4: Simplify right side
    852,369.08x = 408,519,239,875.76
  5. Step 5: Solve for x
    x = 408,519,239,875.76/852,369.08
  6. Step 6: Final answer
    x = 479,275.06

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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.