Home / 854,838.40-1,282,257.60-818,435.20

Finding the Fourth Proportional to 854,838.40, 1,282,257.60 and 818,435.20

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Solution

The fourth proportional to 854,838.40, 1,282,257.60 and 818,435.20 is: 1,227,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,838.40 : 1,282,257.60 = 818,435.20 : x
  2. Step 2: Convert to fraction form
    854,838.40/1,282,257.60 = 818,435.20/x
  3. Step 3: Cross multiply
    854,838.40x = 1,282,257.60 × 818,435.20
  4. Step 4: Simplify right side
    854,838.40x = 1,049,444,755,307.52
  5. Step 5: Solve for x
    x = 1,049,444,755,307.52/854,838.40
  6. Step 6: Final answer
    x = 1,227,652.80

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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.