Home / 389,936.20-584,904.30-254,633.80

Finding the Fourth Proportional to 389,936.20, 584,904.30 and 254,633.80

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Solution

The fourth proportional to 389,936.20, 584,904.30 and 254,633.80 is: 381,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,936.20 : 584,904.30 = 254,633.80 : x
  2. Step 2: Convert to fraction form
    389,936.20/584,904.30 = 254,633.80/x
  3. Step 3: Cross multiply
    389,936.20x = 584,904.30 × 254,633.80
  4. Step 4: Simplify right side
    389,936.20x = 148,936,404,545.34
  5. Step 5: Solve for x
    x = 148,936,404,545.34/389,936.20
  6. Step 6: Final answer
    x = 381,950.70

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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.