Home / 579,610.60-869,675.10-205,901.80

Finding the Fourth Proportional to 579,610.60, 869,675.10 and 205,901.80

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Solution

The fourth proportional to 579,610.60, 869,675.10 and 205,901.80 is: 308,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,610.60 : 869,675.10 = 205,901.80 : x
  2. Step 2: Convert to fraction form
    579,610.60/869,675.10 = 205,901.80/x
  3. Step 3: Cross multiply
    579,610.60x = 869,675.10 × 205,901.80
  4. Step 4: Simplify right side
    579,610.60x = 179,067,668,505.18
  5. Step 5: Solve for x
    x = 179,067,668,505.18/579,610.60
  6. Step 6: Final answer
    x = 308,944.78

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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.