Home / 1,080,896.78-1,491,432.27-678,307.34

Finding the Fourth Proportional to 1,080,896.78, 1,491,432.27 and 678,307.34

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Solution

The fourth proportional to 1,080,896.78, 1,491,432.27 and 678,307.34 is: 935,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,896.78 : 1,491,432.27 = 678,307.34 : x
  2. Step 2: Convert to fraction form
    1,080,896.78/1,491,432.27 = 678,307.34/x
  3. Step 3: Cross multiply
    1,080,896.78x = 1,491,432.27 × 678,307.34
  4. Step 4: Simplify right side
    1,080,896.78x = 1,011,649,455,853.86
  5. Step 5: Solve for x
    x = 1,011,649,455,853.86/1,080,896.78
  6. Step 6: Final answer
    x = 935,935.30

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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.