Home / 1,011,086.12-1,394,658.09-768,837.60

Finding the Fourth Proportional to 1,011,086.12, 1,394,658.09 and 768,837.60

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Solution

The fourth proportional to 1,011,086.12, 1,394,658.09 and 768,837.60 is: 1,060,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,086.12 : 1,394,658.09 = 768,837.60 : x
  2. Step 2: Convert to fraction form
    1,011,086.12/1,394,658.09 = 768,837.60/x
  3. Step 3: Cross multiply
    1,011,086.12x = 1,394,658.09 × 768,837.60
  4. Step 4: Simplify right side
    1,011,086.12x = 1,072,265,578,736.18
  5. Step 5: Solve for x
    x = 1,072,265,578,736.18/1,011,086.12
  6. Step 6: Final answer
    x = 1,060,508.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.