Home / 854,264.78-1,178,546.36-491,493.42

Finding the Fourth Proportional to 854,264.78, 1,178,546.36 and 491,493.42

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Solution

The fourth proportional to 854,264.78, 1,178,546.36 and 491,493.42 is: 678,065.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,264.78 : 1,178,546.36 = 491,493.42 : x
  2. Step 2: Convert to fraction form
    854,264.78/1,178,546.36 = 491,493.42/x
  3. Step 3: Cross multiply
    854,264.78x = 1,178,546.36 × 491,493.42
  4. Step 4: Simplify right side
    854,264.78x = 579,247,778,647.48
  5. Step 5: Solve for x
    x = 579,247,778,647.48/854,264.78
  6. Step 6: Final answer
    x = 678,065.86

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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.