Home / 772,753.71-1,158,312.47-259,930.66

Finding the Fourth Proportional to 772,753.71, 1,158,312.47 and 259,930.66

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Solution

The fourth proportional to 772,753.71, 1,158,312.47 and 259,930.66 is: 389,620.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,753.71 : 1,158,312.47 = 259,930.66 : x
  2. Step 2: Convert to fraction form
    772,753.71/1,158,312.47 = 259,930.66/x
  3. Step 3: Cross multiply
    772,753.71x = 1,158,312.47 × 259,930.66
  4. Step 4: Simplify right side
    772,753.71x = 301,080,924,813.33
  5. Step 5: Solve for x
    x = 301,080,924,813.33/772,753.71
  6. Step 6: Final answer
    x = 389,620.81

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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.