Home / 720,391.32-1,081,144.58-271,520.46

Finding the Fourth Proportional to 720,391.32, 1,081,144.58 and 271,520.46

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Solution

The fourth proportional to 720,391.32, 1,081,144.58 and 271,520.46 is: 407,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,391.32 : 1,081,144.58 = 271,520.46 : x
  2. Step 2: Convert to fraction form
    720,391.32/1,081,144.58 = 271,520.46/x
  3. Step 3: Cross multiply
    720,391.32x = 1,081,144.58 × 271,520.46
  4. Step 4: Simplify right side
    720,391.32x = 293,552,872,330.51
  5. Step 5: Solve for x
    x = 293,552,872,330.51/720,391.32
  6. Step 6: Final answer
    x = 407,490.85

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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.