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Finding the Fourth Proportional to 389,758.28, 584,653.82 and 123,529.32

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Solution

The fourth proportional to 389,758.28, 584,653.82 and 123,529.32 is: 185,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,758.28 : 584,653.82 = 123,529.32 : x
  2. Step 2: Convert to fraction form
    389,758.28/584,653.82 = 123,529.32/x
  3. Step 3: Cross multiply
    389,758.28x = 584,653.82 × 123,529.32
  4. Step 4: Simplify right side
    389,758.28x = 72,221,888,202.36
  5. Step 5: Solve for x
    x = 72,221,888,202.36/389,758.28
  6. Step 6: Final answer
    x = 185,299.18

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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.