Home / 854,434.12-1,281,778.60-314,648.88

Finding the Fourth Proportional to 854,434.12, 1,281,778.60 and 314,648.88

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Solution

The fourth proportional to 854,434.12, 1,281,778.60 and 314,648.88 is: 472,020.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,434.12 : 1,281,778.60 = 314,648.88 : x
  2. Step 2: Convert to fraction form
    854,434.12/1,281,778.60 = 314,648.88/x
  3. Step 3: Cross multiply
    854,434.12x = 1,281,778.60 × 314,648.88
  4. Step 4: Simplify right side
    854,434.12x = 403,310,200,897.97
  5. Step 5: Solve for x
    x = 403,310,200,897.97/854,434.12
  6. Step 6: Final answer
    x = 472,020.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.