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Finding the Fourth Proportional to 324,013.40, 486,020.10 and 288,992.60

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Solution

The fourth proportional to 324,013.40, 486,020.10 and 288,992.60 is: 433,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,013.40 : 486,020.10 = 288,992.60 : x
  2. Step 2: Convert to fraction form
    324,013.40/486,020.10 = 288,992.60/x
  3. Step 3: Cross multiply
    324,013.40x = 486,020.10 × 288,992.60
  4. Step 4: Simplify right side
    324,013.40x = 140,456,212,351.26
  5. Step 5: Solve for x
    x = 140,456,212,351.26/324,013.40
  6. Step 6: Final answer
    x = 433,488.90

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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.