Home / 661,631.10-991,960.65-262,074.30

Finding the Fourth Proportional to 661,631.10, 991,960.65 and 262,074.30

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Solution

The fourth proportional to 661,631.10, 991,960.65 and 262,074.30 is: 392,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,631.10 : 991,960.65 = 262,074.30 : x
  2. Step 2: Convert to fraction form
    661,631.10/991,960.65 = 262,074.30/x
  3. Step 3: Cross multiply
    661,631.10x = 991,960.65 × 262,074.30
  4. Step 4: Simplify right side
    661,631.10x = 259,967,392,976.30
  5. Step 5: Solve for x
    x = 259,967,392,976.30/661,631.10
  6. Step 6: Final answer
    x = 392,918.94

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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.