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Finding the Fourth Proportional to 389,772, 584,658 and 94,284

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Solution

The fourth proportional to 389,772, 584,658 and 94,284 is: 141,426

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,772 : 584,658 = 94,284 : x
  2. Step 2: Convert to fraction form
    389,772/584,658 = 94,284/x
  3. Step 3: Cross multiply
    389,772x = 584,658 × 94,284
  4. Step 4: Simplify right side
    389,772x = 55,123,894,872
  5. Step 5: Solve for x
    x = 55,123,894,872/389,772
  6. Step 6: Final answer
    x = 141,426

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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.