Home / 1,422,761.67-1,963,458.08-778,181.90

Finding the Fourth Proportional to 1,422,761.67, 1,963,458.08 and 778,181.90

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Solution

The fourth proportional to 1,422,761.67, 1,963,458.08 and 778,181.90 is: 1,073,916.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,761.67 : 1,963,458.08 = 778,181.90 : x
  2. Step 2: Convert to fraction form
    1,422,761.67/1,963,458.08 = 778,181.90/x
  3. Step 3: Cross multiply
    1,422,761.67x = 1,963,458.08 × 778,181.90
  4. Step 4: Simplify right side
    1,422,761.67x = 1,527,927,525,556.55
  5. Step 5: Solve for x
    x = 1,527,927,525,556.55/1,422,761.67
  6. Step 6: Final answer
    x = 1,073,916.71

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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.