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Finding the Fourth Proportional to 886,481, 1,329,721.50 and 221,633

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Solution

The fourth proportional to 886,481, 1,329,721.50 and 221,633 is: 332,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,481 : 1,329,721.50 = 221,633 : x
  2. Step 2: Convert to fraction form
    886,481/1,329,721.50 = 221,633/x
  3. Step 3: Cross multiply
    886,481x = 1,329,721.50 × 221,633
  4. Step 4: Simplify right side
    886,481x = 294,710,165,209.50
  5. Step 5: Solve for x
    x = 294,710,165,209.50/886,481
  6. Step 6: Final answer
    x = 332,449.50

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1.5x scale

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.