Home / 466,278.75-643,488.30-275,288.04

Finding the Fourth Proportional to 466,278.75, 643,488.30 and 275,288.04

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Solution

The fourth proportional to 466,278.75, 643,488.30 and 275,288.04 is: 379,911.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,278.75 : 643,488.30 = 275,288.04 : x
  2. Step 2: Convert to fraction form
    466,278.75/643,488.30 = 275,288.04/x
  3. Step 3: Cross multiply
    466,278.75x = 643,488.30 × 275,288.04
  4. Step 4: Simplify right side
    466,278.75x = 177,144,632,869.93
  5. Step 5: Solve for x
    x = 177,144,632,869.93/466,278.75
  6. Step 6: Final answer
    x = 379,911.44

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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.