Home / 772,781.60-1,159,039.56-204,168.80

Finding the Fourth Proportional to 772,781.60, 1,159,039.56 and 204,168.80

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Solution

The fourth proportional to 772,781.60, 1,159,039.56 and 204,168.80 is: 306,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,781.60 : 1,159,039.56 = 204,168.80 : x
  2. Step 2: Convert to fraction form
    772,781.60/1,159,039.56 = 204,168.80/x
  3. Step 3: Cross multiply
    772,781.60x = 1,159,039.56 × 204,168.80
  4. Step 4: Simplify right side
    772,781.60x = 236,639,716,117.73
  5. Step 5: Solve for x
    x = 236,639,716,117.73/772,781.60
  6. Step 6: Final answer
    x = 306,218.10

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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.