Home / 854,431.12-1,281,774.10-314,645.88

Finding the Fourth Proportional to 854,431.12, 1,281,774.10 and 314,645.88

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Solution

The fourth proportional to 854,431.12, 1,281,774.10 and 314,645.88 is: 472,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,431.12 : 1,281,774.10 = 314,645.88 : x
  2. Step 2: Convert to fraction form
    854,431.12/1,281,774.10 = 314,645.88/x
  3. Step 3: Cross multiply
    854,431.12x = 1,281,774.10 × 314,645.88
  4. Step 4: Simplify right side
    854,431.12x = 403,304,941,286.91
  5. Step 5: Solve for x
    x = 403,304,941,286.91/854,431.12
  6. Step 6: Final answer
    x = 472,015.75

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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.