Home / 807,625.80-1,211,438.70-770,884.20

Finding the Fourth Proportional to 807,625.80, 1,211,438.70 and 770,884.20

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Solution

The fourth proportional to 807,625.80, 1,211,438.70 and 770,884.20 is: 1,156,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,625.80 : 1,211,438.70 = 770,884.20 : x
  2. Step 2: Convert to fraction form
    807,625.80/1,211,438.70 = 770,884.20/x
  3. Step 3: Cross multiply
    807,625.80x = 1,211,438.70 × 770,884.20
  4. Step 4: Simplify right side
    807,625.80x = 933,878,953,098.54
  5. Step 5: Solve for x
    x = 933,878,953,098.54/807,625.80
  6. Step 6: Final answer
    x = 1,156,326.30

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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.