Home / 842,645.28-1,257,578.52-808,353.12

Finding the Fourth Proportional to 842,645.28, 1,257,578.52 and 808,353.12

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Solution

The fourth proportional to 842,645.28, 1,257,578.52 and 808,353.12 is: 1,206,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,645.28 : 1,257,578.52 = 808,353.12 : x
  2. Step 2: Convert to fraction form
    842,645.28/1,257,578.52 = 808,353.12/x
  3. Step 3: Cross multiply
    842,645.28x = 1,257,578.52 × 808,353.12
  4. Step 4: Simplify right side
    842,645.28x = 1,016,567,520,286.98
  5. Step 5: Solve for x
    x = 1,016,567,520,286.98/842,645.28
  6. Step 6: Final answer
    x = 1,206,400.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.