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Finding the Fourth Proportional to 389,953.01, 584,950.28 and 123,734.36

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Solution

The fourth proportional to 389,953.01, 584,950.28 and 123,734.36 is: 185,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,953.01 : 584,950.28 = 123,734.36 : x
  2. Step 2: Convert to fraction form
    389,953.01/584,950.28 = 123,734.36/x
  3. Step 3: Cross multiply
    389,953.01x = 584,950.28 × 123,734.36
  4. Step 4: Simplify right side
    389,953.01x = 72,378,449,371.32
  5. Step 5: Solve for x
    x = 72,378,449,371.32/389,953.01
  6. Step 6: Final answer
    x = 185,608.13

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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.