Home / 825,642.64-1,239,016.28-300,330.64

Finding the Fourth Proportional to 825,642.64, 1,239,016.28 and 300,330.64

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Solution

The fourth proportional to 825,642.64, 1,239,016.28 and 300,330.64 is: 450,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,642.64 : 1,239,016.28 = 300,330.64 : x
  2. Step 2: Convert to fraction form
    825,642.64/1,239,016.28 = 300,330.64/x
  3. Step 3: Cross multiply
    825,642.64x = 1,239,016.28 × 300,330.64
  4. Step 4: Simplify right side
    825,642.64x = 372,114,552,342.82
  5. Step 5: Solve for x
    x = 372,114,552,342.82/825,642.64
  6. Step 6: Final answer
    x = 450,696.87

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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.