Home / 725,693.20-1,088,021.40-326,006.80

Finding the Fourth Proportional to 725,693.20, 1,088,021.40 and 326,006.80

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Solution

The fourth proportional to 725,693.20, 1,088,021.40 and 326,006.80 is: 488,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,693.20 : 1,088,021.40 = 326,006.80 : x
  2. Step 2: Convert to fraction form
    725,693.20/1,088,021.40 = 326,006.80/x
  3. Step 3: Cross multiply
    725,693.20x = 1,088,021.40 × 326,006.80
  4. Step 4: Simplify right side
    725,693.20x = 354,702,374,945.52
  5. Step 5: Solve for x
    x = 354,702,374,945.52/725,693.20
  6. Step 6: Final answer
    x = 488,777.32

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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.