Home / 725,405.12-1,088,106.31-192,926.66

Finding the Fourth Proportional to 725,405.12, 1,088,106.31 and 192,926.66

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Solution

The fourth proportional to 725,405.12, 1,088,106.31 and 192,926.66 is: 289,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,405.12 : 1,088,106.31 = 192,926.66 : x
  2. Step 2: Convert to fraction form
    725,405.12/1,088,106.31 = 192,926.66/x
  3. Step 3: Cross multiply
    725,405.12x = 1,088,106.31 × 192,926.66
  4. Step 4: Simplify right side
    725,405.12x = 209,924,717,034.45
  5. Step 5: Solve for x
    x = 209,924,717,034.45/725,405.12
  6. Step 6: Final answer
    x = 289,389.63

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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.