Home / 911,129.40-1,366,694.10-867,583.80

Finding the Fourth Proportional to 911,129.40, 1,366,694.10 and 867,583.80

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Solution

The fourth proportional to 911,129.40, 1,366,694.10 and 867,583.80 is: 1,301,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,129.40 : 1,366,694.10 = 867,583.80 : x
  2. Step 2: Convert to fraction form
    911,129.40/1,366,694.10 = 867,583.80/x
  3. Step 3: Cross multiply
    911,129.40x = 1,366,694.10 × 867,583.80
  4. Step 4: Simplify right side
    911,129.40x = 1,185,721,660,715.58
  5. Step 5: Solve for x
    x = 1,185,721,660,715.58/911,129.40
  6. Step 6: Final answer
    x = 1,301,375.70

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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.