Home / 988,680.40-1,481,854.20-739,070.80

Finding the Fourth Proportional to 988,680.40, 1,481,854.20 and 739,070.80

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Solution

The fourth proportional to 988,680.40, 1,481,854.20 and 739,070.80 is: 1,107,734.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,680.40 : 1,481,854.20 = 739,070.80 : x
  2. Step 2: Convert to fraction form
    988,680.40/1,481,854.20 = 739,070.80/x
  3. Step 3: Cross multiply
    988,680.40x = 1,481,854.20 × 739,070.80
  4. Step 4: Simplify right side
    988,680.40x = 1,095,195,169,077.36
  5. Step 5: Solve for x
    x = 1,095,195,169,077.36/988,680.40
  6. Step 6: Final answer
    x = 1,107,734.28

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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.