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Finding the Fourth Proportional to 886,482, 1,329,723 and 221,634

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Solution

The fourth proportional to 886,482, 1,329,723 and 221,634 is: 332,451

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,482 : 1,329,723 = 221,634 : x
  2. Step 2: Convert to fraction form
    886,482/1,329,723 = 221,634/x
  3. Step 3: Cross multiply
    886,482x = 1,329,723 × 221,634
  4. Step 4: Simplify right side
    886,482x = 294,711,827,382
  5. Step 5: Solve for x
    x = 294,711,827,382/886,482
  6. Step 6: Final answer
    x = 332,451

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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.