Home / 776,179.92-1,162,884.75-420,967.38

Finding the Fourth Proportional to 776,179.92, 1,162,884.75 and 420,967.38

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Solution

The fourth proportional to 776,179.92, 1,162,884.75 and 420,967.38 is: 630,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,179.92 : 1,162,884.75 = 420,967.38 : x
  2. Step 2: Convert to fraction form
    776,179.92/1,162,884.75 = 420,967.38/x
  3. Step 3: Cross multiply
    776,179.92x = 1,162,884.75 × 420,967.38
  4. Step 4: Simplify right side
    776,179.92x = 489,536,546,449.46
  5. Step 5: Solve for x
    x = 489,536,546,449.46/776,179.92
  6. Step 6: Final answer
    x = 630,699.83

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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.