Home / 852,364.08-1,278,213.72-319,594.80

Finding the Fourth Proportional to 852,364.08, 1,278,213.72 and 319,594.80

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Solution

The fourth proportional to 852,364.08, 1,278,213.72 and 319,594.80 is: 479,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,364.08 : 1,278,213.72 = 319,594.80 : x
  2. Step 2: Convert to fraction form
    852,364.08/1,278,213.72 = 319,594.80/x
  3. Step 3: Cross multiply
    852,364.08x = 1,278,213.72 × 319,594.80
  4. Step 4: Simplify right side
    852,364.08x = 408,510,458,200.66
  5. Step 5: Solve for x
    x = 408,510,458,200.66/852,364.08
  6. Step 6: Final answer
    x = 479,267.57

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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.