Home / 389,786.43-584,700.26-123,567.71

Finding the Fourth Proportional to 389,786.43, 584,700.26 and 123,567.71

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Solution

The fourth proportional to 389,786.43, 584,700.26 and 123,567.71 is: 185,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,786.43 : 584,700.26 = 123,567.71 : x
  2. Step 2: Convert to fraction form
    389,786.43/584,700.26 = 123,567.71/x
  3. Step 3: Cross multiply
    389,786.43x = 584,700.26 × 123,567.71
  4. Step 4: Simplify right side
    389,786.43x = 72,250,068,623.26
  5. Step 5: Solve for x
    x = 72,250,068,623.26/389,786.43
  6. Step 6: Final answer
    x = 185,358.09

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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.