Home / 812,530.85-1,218,793.23-243,909.50

Finding the Fourth Proportional to 812,530.85, 1,218,793.23 and 243,909.50

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Solution

The fourth proportional to 812,530.85, 1,218,793.23 and 243,909.50 is: 365,863.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,530.85 : 1,218,793.23 = 243,909.50 : x
  2. Step 2: Convert to fraction form
    812,530.85/1,218,793.23 = 243,909.50/x
  3. Step 3: Cross multiply
    812,530.85x = 1,218,793.23 × 243,909.50
  4. Step 4: Simplify right side
    812,530.85x = 297,275,241,238.72
  5. Step 5: Solve for x
    x = 297,275,241,238.72/812,530.85
  6. Step 6: Final answer
    x = 365,863.33

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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.