Home / 1,279,610.46-1,919,218.86-426,696.93

Finding the Fourth Proportional to 1,279,610.46, 1,919,218.86 and 426,696.93

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Solution

The fourth proportional to 1,279,610.46, 1,919,218.86 and 426,696.93 is: 639,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,610.46 : 1,919,218.86 = 426,696.93 : x
  2. Step 2: Convert to fraction form
    1,279,610.46/1,919,218.86 = 426,696.93/x
  3. Step 3: Cross multiply
    1,279,610.46x = 1,919,218.86 × 426,696.93
  4. Step 4: Simplify right side
    1,279,610.46x = 818,924,795,560.10
  5. Step 5: Solve for x
    x = 818,924,795,560.10/1,279,610.46
  6. Step 6: Final answer
    x = 639,979.76

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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.