Home / 1,205,195.26-1,663,164.90-661,340.15

Finding the Fourth Proportional to 1,205,195.26, 1,663,164.90 and 661,340.15

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Solution

The fourth proportional to 1,205,195.26, 1,663,164.90 and 661,340.15 is: 912,646.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,195.26 : 1,663,164.90 = 661,340.15 : x
  2. Step 2: Convert to fraction form
    1,205,195.26/1,663,164.90 = 661,340.15/x
  3. Step 3: Cross multiply
    1,205,195.26x = 1,663,164.90 × 661,340.15
  4. Step 4: Simplify right side
    1,205,195.26x = 1,099,917,724,440.73
  5. Step 5: Solve for x
    x = 1,099,917,724,440.73/1,205,195.26
  6. Step 6: Final answer
    x = 912,646.91

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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.