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Finding the Fourth Proportional to 324,634.10, 486,951.15 and 288,998.90

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Solution

The fourth proportional to 324,634.10, 486,951.15 and 288,998.90 is: 433,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,634.10 : 486,951.15 = 288,998.90 : x
  2. Step 2: Convert to fraction form
    324,634.10/486,951.15 = 288,998.90/x
  3. Step 3: Cross multiply
    324,634.10x = 486,951.15 × 288,998.90
  4. Step 4: Simplify right side
    324,634.10x = 140,728,346,703.74
  5. Step 5: Solve for x
    x = 140,728,346,703.74/324,634.10
  6. Step 6: Final answer
    x = 433,498.35

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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.