Home / 1,280,212.54-1,766,815.51-699,523.94

Finding the Fourth Proportional to 1,280,212.54, 1,766,815.51 and 699,523.94

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Solution

The fourth proportional to 1,280,212.54, 1,766,815.51 and 699,523.94 is: 965,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,212.54 : 1,766,815.51 = 699,523.94 : x
  2. Step 2: Convert to fraction form
    1,280,212.54/1,766,815.51 = 699,523.94/x
  3. Step 3: Cross multiply
    1,280,212.54x = 1,766,815.51 × 699,523.94
  4. Step 4: Simplify right side
    1,280,212.54x = 1,235,929,749,476.54
  5. Step 5: Solve for x
    x = 1,235,929,749,476.54/1,280,212.54
  6. Step 6: Final answer
    x = 965,409.82

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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.