Home / 389,913.24-584,890.64-123,695.04

Finding the Fourth Proportional to 389,913.24, 584,890.64 and 123,695.04

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Solution

The fourth proportional to 389,913.24, 584,890.64 and 123,695.04 is: 185,549.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,913.24 : 584,890.64 = 123,695.04 : x
  2. Step 2: Convert to fraction form
    389,913.24/584,890.64 = 123,695.04/x
  3. Step 3: Cross multiply
    389,913.24x = 584,890.64 × 123,695.04
  4. Step 4: Simplify right side
    389,913.24x = 72,348,071,110.43
  5. Step 5: Solve for x
    x = 72,348,071,110.43/389,913.24
  6. Step 6: Final answer
    x = 185,549.15

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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.