Home / 858,669.60-1,288,644.30-327,228.60

Finding the Fourth Proportional to 858,669.60, 1,288,644.30 and 327,228.60

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Solution

The fourth proportional to 858,669.60, 1,288,644.30 and 327,228.60 is: 491,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,669.60 : 1,288,644.30 = 327,228.60 : x
  2. Step 2: Convert to fraction form
    858,669.60/1,288,644.30 = 327,228.60/x
  3. Step 3: Cross multiply
    858,669.60x = 1,288,644.30 × 327,228.60
  4. Step 4: Simplify right side
    858,669.60x = 421,681,270,186.98
  5. Step 5: Solve for x
    x = 421,681,270,186.98/858,669.60
  6. Step 6: Final answer
    x = 491,086.76

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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.