Home / 1,188,194.16-1,636,935.66-972,074.64

Finding the Fourth Proportional to 1,188,194.16, 1,636,935.66 and 972,074.64

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Solution

The fourth proportional to 1,188,194.16, 1,636,935.66 and 972,074.64 is: 1,339,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,194.16 : 1,636,935.66 = 972,074.64 : x
  2. Step 2: Convert to fraction form
    1,188,194.16/1,636,935.66 = 972,074.64/x
  3. Step 3: Cross multiply
    1,188,194.16x = 1,636,935.66 × 972,074.64
  4. Step 4: Simplify right side
    1,188,194.16x = 1,591,223,642,397.66
  5. Step 5: Solve for x
    x = 1,591,223,642,397.66/1,188,194.16
  6. Step 6: Final answer
    x = 1,339,194.97

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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.