Home / 647,979.50-972,403.09-268,900.62

Finding the Fourth Proportional to 647,979.50, 972,403.09 and 268,900.62

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Solution

The fourth proportional to 647,979.50, 972,403.09 and 268,900.62 is: 403,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,979.50 : 972,403.09 = 268,900.62 : x
  2. Step 2: Convert to fraction form
    647,979.50/972,403.09 = 268,900.62/x
  3. Step 3: Cross multiply
    647,979.50x = 972,403.09 × 268,900.62
  4. Step 4: Simplify right side
    647,979.50x = 261,479,793,118.66
  5. Step 5: Solve for x
    x = 261,479,793,118.66/647,979.50
  6. Step 6: Final answer
    x = 403,530.97

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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.