Home / 389,869.38-584,876.98-123,558.39

Finding the Fourth Proportional to 389,869.38, 584,876.98 and 123,558.39

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Solution

The fourth proportional to 389,869.38, 584,876.98 and 123,558.39 is: 185,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,869.38 : 584,876.98 = 123,558.39 : x
  2. Step 2: Convert to fraction form
    389,869.38/584,876.98 = 123,558.39/x
  3. Step 3: Cross multiply
    389,869.38x = 584,876.98 × 123,558.39
  4. Step 4: Simplify right side
    389,869.38x = 72,266,457,996.86
  5. Step 5: Solve for x
    x = 72,266,457,996.86/389,869.38
  6. Step 6: Final answer
    x = 185,360.69

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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.