Home / 854,901.12-1,282,646.40-381,912.96

Finding the Fourth Proportional to 854,901.12, 1,282,646.40 and 381,912.96

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Solution

The fourth proportional to 854,901.12, 1,282,646.40 and 381,912.96 is: 573,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,901.12 : 1,282,646.40 = 381,912.96 : x
  2. Step 2: Convert to fraction form
    854,901.12/1,282,646.40 = 381,912.96/x
  3. Step 3: Cross multiply
    854,901.12x = 1,282,646.40 × 381,912.96
  4. Step 4: Simplify right side
    854,901.12x = 489,859,283,257.34
  5. Step 5: Solve for x
    x = 489,859,283,257.34/854,901.12
  6. Step 6: Final answer
    x = 573,001.10

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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.