Home / 690,712.21-1,036,234.20-264,241.05

Finding the Fourth Proportional to 690,712.21, 1,036,234.20 and 264,241.05

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Solution

The fourth proportional to 690,712.21, 1,036,234.20 and 264,241.05 is: 396,425.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,712.21 : 1,036,234.20 = 264,241.05 : x
  2. Step 2: Convert to fraction form
    690,712.21/1,036,234.20 = 264,241.05/x
  3. Step 3: Cross multiply
    690,712.21x = 1,036,234.20 × 264,241.05
  4. Step 4: Simplify right side
    690,712.21x = 273,815,613,053.91
  5. Step 5: Solve for x
    x = 273,815,613,053.91/690,712.21
  6. Step 6: Final answer
    x = 396,425.04

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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.