Home / 647,979.87-972,403.65-268,900.98

Finding the Fourth Proportional to 647,979.87, 972,403.65 and 268,900.98

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Solution

The fourth proportional to 647,979.87, 972,403.65 and 268,900.98 is: 403,531.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,979.87 : 972,403.65 = 268,900.98 : x
  2. Step 2: Convert to fraction form
    647,979.87/972,403.65 = 268,900.98/x
  3. Step 3: Cross multiply
    647,979.87x = 972,403.65 × 268,900.98
  4. Step 4: Simplify right side
    647,979.87x = 261,480,294,440.58
  5. Step 5: Solve for x
    x = 261,480,294,440.58/647,979.87
  6. Step 6: Final answer
    x = 403,531.51

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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.