Home / 389,708.36-584,579.60-123,488.52

Finding the Fourth Proportional to 389,708.36, 584,579.60 and 123,488.52

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Solution

The fourth proportional to 389,708.36, 584,579.60 and 123,488.52 is: 185,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,708.36 : 584,579.60 = 123,488.52 : x
  2. Step 2: Convert to fraction form
    389,708.36/584,579.60 = 123,488.52/x
  3. Step 3: Cross multiply
    389,708.36x = 584,579.60 × 123,488.52
  4. Step 4: Simplify right side
    389,708.36x = 72,188,869,626.19
  5. Step 5: Solve for x
    x = 72,188,869,626.19/389,708.36
  6. Step 6: Final answer
    x = 185,238.19

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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.