Home / 1,205,229.94-1,663,212.75-661,374.82

Finding the Fourth Proportional to 1,205,229.94, 1,663,212.75 and 661,374.82

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Solution

The fourth proportional to 1,205,229.94, 1,663,212.75 and 661,374.82 is: 912,694.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,229.94 : 1,663,212.75 = 661,374.82 : x
  2. Step 2: Convert to fraction form
    1,205,229.94/1,663,212.75 = 661,374.82/x
  3. Step 3: Cross multiply
    1,205,229.94x = 1,663,212.75 × 661,374.82
  4. Step 4: Simplify right side
    1,205,229.94x = 1,100,007,033,152.95
  5. Step 5: Solve for x
    x = 1,100,007,033,152.95/1,205,229.94
  6. Step 6: Final answer
    x = 912,694.75

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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.