Home / 778,198.64-1,167,436.20-265,835.84

Finding the Fourth Proportional to 778,198.64, 1,167,436.20 and 265,835.84

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Solution

The fourth proportional to 778,198.64, 1,167,436.20 and 265,835.84 is: 398,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,198.64 : 1,167,436.20 = 265,835.84 : x
  2. Step 2: Convert to fraction form
    778,198.64/1,167,436.20 = 265,835.84/x
  3. Step 3: Cross multiply
    778,198.64x = 1,167,436.20 × 265,835.84
  4. Step 4: Simplify right side
    778,198.64x = 310,346,382,873.41
  5. Step 5: Solve for x
    x = 310,346,382,873.41/778,198.64
  6. Step 6: Final answer
    x = 398,800.98

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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.