Home / 669,356.34-1,003,821.48-219,972.66

Finding the Fourth Proportional to 669,356.34, 1,003,821.48 and 219,972.66

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Solution

The fourth proportional to 669,356.34, 1,003,821.48 and 219,972.66 is: 329,888.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,356.34 : 1,003,821.48 = 219,972.66 : x
  2. Step 2: Convert to fraction form
    669,356.34/1,003,821.48 = 219,972.66/x
  3. Step 3: Cross multiply
    669,356.34x = 1,003,821.48 × 219,972.66
  4. Step 4: Simplify right side
    669,356.34x = 220,813,281,120.74
  5. Step 5: Solve for x
    x = 220,813,281,120.74/669,356.34
  6. Step 6: Final answer
    x = 329,888.98

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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.