Home / 720,865.85-1,081,298.84-271,687.50

Finding the Fourth Proportional to 720,865.85, 1,081,298.84 and 271,687.50

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Solution

The fourth proportional to 720,865.85, 1,081,298.84 and 271,687.50 is: 407,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,865.85 : 1,081,298.84 = 271,687.50 : x
  2. Step 2: Convert to fraction form
    720,865.85/1,081,298.84 = 271,687.50/x
  3. Step 3: Cross multiply
    720,865.85x = 1,081,298.84 × 271,687.50
  4. Step 4: Simplify right side
    720,865.85x = 293,775,377,234.06
  5. Step 5: Solve for x
    x = 293,775,377,234.06/720,865.85
  6. Step 6: Final answer
    x = 407,531.28

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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.