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Finding the Fourth Proportional to 476,951.40, 658,049.40 and 285,895.08

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Solution

The fourth proportional to 476,951.40, 658,049.40 and 285,895.08 is: 394,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,951.40 : 658,049.40 = 285,895.08 : x
  2. Step 2: Convert to fraction form
    476,951.40/658,049.40 = 285,895.08/x
  3. Step 3: Cross multiply
    476,951.40x = 658,049.40 × 285,895.08
  4. Step 4: Simplify right side
    476,951.40x = 188,133,085,856.95
  5. Step 5: Solve for x
    x = 188,133,085,856.95/476,951.40
  6. Step 6: Final answer
    x = 394,449.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.