Home / 818,513.80-1,227,770.70-781,772.20

Finding the Fourth Proportional to 818,513.80, 1,227,770.70 and 781,772.20

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Solution

The fourth proportional to 818,513.80, 1,227,770.70 and 781,772.20 is: 1,172,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,513.80 : 1,227,770.70 = 781,772.20 : x
  2. Step 2: Convert to fraction form
    818,513.80/1,227,770.70 = 781,772.20/x
  3. Step 3: Cross multiply
    818,513.80x = 1,227,770.70 × 781,772.20
  4. Step 4: Simplify right side
    818,513.80x = 959,837,001,234.54
  5. Step 5: Solve for x
    x = 959,837,001,234.54/818,513.80
  6. Step 6: Final answer
    x = 1,172,658.30

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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.