Home / 829,078.80-1,245,461.40-806,960.40

Finding the Fourth Proportional to 829,078.80, 1,245,461.40 and 806,960.40

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Solution

The fourth proportional to 829,078.80, 1,245,461.40 and 806,960.40 is: 1,212,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,078.80 : 1,245,461.40 = 806,960.40 : x
  2. Step 2: Convert to fraction form
    829,078.80/1,245,461.40 = 806,960.40/x
  3. Step 3: Cross multiply
    829,078.80x = 1,245,461.40 × 806,960.40
  4. Step 4: Simplify right side
    829,078.80x = 1,005,038,029,528.56
  5. Step 5: Solve for x
    x = 1,005,038,029,528.56/829,078.80
  6. Step 6: Final answer
    x = 1,212,234.63

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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.