Home / 1,080,895.78-1,491,430.89-678,306.34

Finding the Fourth Proportional to 1,080,895.78, 1,491,430.89 and 678,306.34

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Solution

The fourth proportional to 1,080,895.78, 1,491,430.89 and 678,306.34 is: 935,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,895.78 : 1,491,430.89 = 678,306.34 : x
  2. Step 2: Convert to fraction form
    1,080,895.78/1,491,430.89 = 678,306.34/x
  3. Step 3: Cross multiply
    1,080,895.78x = 1,491,430.89 × 678,306.34
  4. Step 4: Simplify right side
    1,080,895.78x = 1,011,647,028,358.84
  5. Step 5: Solve for x
    x = 1,011,647,028,358.84/1,080,895.78
  6. Step 6: Final answer
    x = 935,933.92

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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.