Home / 389,940.75-584,911.13-140,622.75

Finding the Fourth Proportional to 389,940.75, 584,911.13 and 140,622.75

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Solution

The fourth proportional to 389,940.75, 584,911.13 and 140,622.75 is: 210,934.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,940.75 : 584,911.13 = 140,622.75 : x
  2. Step 2: Convert to fraction form
    389,940.75/584,911.13 = 140,622.75/x
  3. Step 3: Cross multiply
    389,940.75x = 584,911.13 × 140,622.75
  4. Step 4: Simplify right side
    389,940.75x = 82,251,810,903.09
  5. Step 5: Solve for x
    x = 82,251,810,903.09/389,940.75
  6. Step 6: Final answer
    x = 210,934.13

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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.