Home / 527,975.20-790,887.60-327,680.80

Finding the Fourth Proportional to 527,975.20, 790,887.60 and 327,680.80

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Solution

The fourth proportional to 527,975.20, 790,887.60 and 327,680.80 is: 490,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,975.20 : 790,887.60 = 327,680.80 : x
  2. Step 2: Convert to fraction form
    527,975.20/790,887.60 = 327,680.80/x
  3. Step 3: Cross multiply
    527,975.20x = 790,887.60 × 327,680.80
  4. Step 4: Simplify right side
    527,975.20x = 259,158,681,478.08
  5. Step 5: Solve for x
    x = 259,158,681,478.08/527,975.20
  6. Step 6: Final answer
    x = 490,853.89

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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.