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Finding the Fourth Proportional to 880,863.80, 1,321,295.70 and 744,006.20

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Solution

The fourth proportional to 880,863.80, 1,321,295.70 and 744,006.20 is: 1,116,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,863.80 : 1,321,295.70 = 744,006.20 : x
  2. Step 2: Convert to fraction form
    880,863.80/1,321,295.70 = 744,006.20/x
  3. Step 3: Cross multiply
    880,863.80x = 1,321,295.70 × 744,006.20
  4. Step 4: Simplify right side
    880,863.80x = 983,052,192,833.34
  5. Step 5: Solve for x
    x = 983,052,192,833.34/880,863.80
  6. Step 6: Final answer
    x = 1,116,009.30

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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.