Home / 776,180.92-1,162,886.25-420,968.38

Finding the Fourth Proportional to 776,180.92, 1,162,886.25 and 420,968.38

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Solution

The fourth proportional to 776,180.92, 1,162,886.25 and 420,968.38 is: 630,701.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,180.92 : 1,162,886.25 = 420,968.38 : x
  2. Step 2: Convert to fraction form
    776,180.92/1,162,886.25 = 420,968.38/x
  3. Step 3: Cross multiply
    776,180.92x = 1,162,886.25 × 420,968.38
  4. Step 4: Simplify right side
    776,180.92x = 489,538,340,786.78
  5. Step 5: Solve for x
    x = 489,538,340,786.78/776,180.92
  6. Step 6: Final answer
    x = 630,701.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.