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Finding the Fourth Proportional to 324,003.60, 486,005.40 and 298,415.70

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Solution

The fourth proportional to 324,003.60, 486,005.40 and 298,415.70 is: 447,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,003.60 : 486,005.40 = 298,415.70 : x
  2. Step 2: Convert to fraction form
    324,003.60/486,005.40 = 298,415.70/x
  3. Step 3: Cross multiply
    324,003.60x = 486,005.40 × 298,415.70
  4. Step 4: Simplify right side
    324,003.60x = 145,031,641,644.78
  5. Step 5: Solve for x
    x = 145,031,641,644.78/324,003.60
  6. Step 6: Final answer
    x = 447,623.55

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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.