Home / 854,214.15-1,179,112.38-491,782.45

Finding the Fourth Proportional to 854,214.15, 1,179,112.38 and 491,782.45

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Solution

The fourth proportional to 854,214.15, 1,179,112.38 and 491,782.45 is: 678,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,214.15 : 1,179,112.38 = 491,782.45 : x
  2. Step 2: Convert to fraction form
    854,214.15/1,179,112.38 = 491,782.45/x
  3. Step 3: Cross multiply
    854,214.15x = 1,179,112.38 × 491,782.45
  4. Step 4: Simplify right side
    854,214.15x = 579,866,775,061.73
  5. Step 5: Solve for x
    x = 579,866,775,061.73/854,214.15
  6. Step 6: Final answer
    x = 678,830.69

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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.