Home / 1,228,847.40-1,696,294.02-1,188,988.20

Finding the Fourth Proportional to 1,228,847.40, 1,696,294.02 and 1,188,988.20

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Solution

The fourth proportional to 1,228,847.40, 1,696,294.02 and 1,188,988.20 is: 1,641,272.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,847.40 : 1,696,294.02 = 1,188,988.20 : x
  2. Step 2: Convert to fraction form
    1,228,847.40/1,696,294.02 = 1,188,988.20/x
  3. Step 3: Cross multiply
    1,228,847.40x = 1,696,294.02 × 1,188,988.20
  4. Step 4: Simplify right side
    1,228,847.40x = 2,016,873,573,510.56
  5. Step 5: Solve for x
    x = 2,016,873,573,510.56/1,228,847.40
  6. Step 6: Final answer
    x = 1,641,272.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.