Home / 1,231,126.80-1,848,245.40-662,960.40

Finding the Fourth Proportional to 1,231,126.80, 1,848,245.40 and 662,960.40

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Solution

The fourth proportional to 1,231,126.80, 1,848,245.40 and 662,960.40 is: 995,278.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,126.80 : 1,848,245.40 = 662,960.40 : x
  2. Step 2: Convert to fraction form
    1,231,126.80/1,848,245.40 = 662,960.40/x
  3. Step 3: Cross multiply
    1,231,126.80x = 1,848,245.40 × 662,960.40
  4. Step 4: Simplify right side
    1,231,126.80x = 1,225,313,509,682.16
  5. Step 5: Solve for x
    x = 1,225,313,509,682.16/1,231,126.80
  6. Step 6: Final answer
    x = 995,278.07

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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.