Home / 389,708.19-584,579.29-123,488.32

Finding the Fourth Proportional to 389,708.19, 584,579.29 and 123,488.32

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Solution

The fourth proportional to 389,708.19, 584,579.29 and 123,488.32 is: 185,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,708.19 : 584,579.29 = 123,488.32 : x
  2. Step 2: Convert to fraction form
    389,708.19/584,579.29 = 123,488.32/x
  3. Step 3: Cross multiply
    389,708.19x = 584,579.29 × 123,488.32
  4. Step 4: Simplify right side
    389,708.19x = 72,188,714,428.89
  5. Step 5: Solve for x
    x = 72,188,714,428.89/389,708.19
  6. Step 6: Final answer
    x = 185,237.87

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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.