Home / 720,930.18-1,080,758.85-271,966.33

Finding the Fourth Proportional to 720,930.18, 1,080,758.85 and 271,966.33

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Solution

The fourth proportional to 720,930.18, 1,080,758.85 and 271,966.33 is: 407,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,930.18 : 1,080,758.85 = 271,966.33 : x
  2. Step 2: Convert to fraction form
    720,930.18/1,080,758.85 = 271,966.33/x
  3. Step 3: Cross multiply
    720,930.18x = 1,080,758.85 × 271,966.33
  4. Step 4: Simplify right side
    720,930.18x = 293,930,018,380.60
  5. Step 5: Solve for x
    x = 293,930,018,380.60/720,930.18
  6. Step 6: Final answer
    x = 407,709.41

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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.