Home / 452,939.40-679,406.67-115,979.40

Finding the Fourth Proportional to 452,939.40, 679,406.67 and 115,979.40

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Solution

The fourth proportional to 452,939.40, 679,406.67 and 115,979.40 is: 173,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,939.40 : 679,406.67 = 115,979.40 : x
  2. Step 2: Convert to fraction form
    452,939.40/679,406.67 = 115,979.40/x
  3. Step 3: Cross multiply
    452,939.40x = 679,406.67 × 115,979.40
  4. Step 4: Simplify right side
    452,939.40x = 78,797,177,942.60
  5. Step 5: Solve for x
    x = 78,797,177,942.60/452,939.40
  6. Step 6: Final answer
    x = 173,968.48

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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.