Home / 389,961.63-584,963.22-123,742.98

Finding the Fourth Proportional to 389,961.63, 584,963.22 and 123,742.98

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Solution

The fourth proportional to 389,961.63, 584,963.22 and 123,742.98 is: 185,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,961.63 : 584,963.22 = 123,742.98 : x
  2. Step 2: Convert to fraction form
    389,961.63/584,963.22 = 123,742.98/x
  3. Step 3: Cross multiply
    389,961.63x = 584,963.22 × 123,742.98
  4. Step 4: Simplify right side
    389,961.63x = 72,385,092,033.20
  5. Step 5: Solve for x
    x = 72,385,092,033.20/389,961.63
  6. Step 6: Final answer
    x = 185,621.06

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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.