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Finding the Fourth Proportional to 854,951.40, 1,282,427.10 and 818,548.20

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Solution

The fourth proportional to 854,951.40, 1,282,427.10 and 818,548.20 is: 1,227,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,951.40 : 1,282,427.10 = 818,548.20 : x
  2. Step 2: Convert to fraction form
    854,951.40/1,282,427.10 = 818,548.20/x
  3. Step 3: Cross multiply
    854,951.40x = 1,282,427.10 × 818,548.20
  4. Step 4: Simplify right side
    854,951.40x = 1,049,728,394,336.22
  5. Step 5: Solve for x
    x = 1,049,728,394,336.22/854,951.40
  6. Step 6: Final answer
    x = 1,227,822.30

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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.