Home / 807,497.80-1,211,246.70-770,756.20

Finding the Fourth Proportional to 807,497.80, 1,211,246.70 and 770,756.20

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Solution

The fourth proportional to 807,497.80, 1,211,246.70 and 770,756.20 is: 1,156,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,497.80 : 1,211,246.70 = 770,756.20 : x
  2. Step 2: Convert to fraction form
    807,497.80/1,211,246.70 = 770,756.20/x
  3. Step 3: Cross multiply
    807,497.80x = 1,211,246.70 × 770,756.20
  4. Step 4: Simplify right side
    807,497.80x = 933,575,903,754.54
  5. Step 5: Solve for x
    x = 933,575,903,754.54/807,497.80
  6. Step 6: Final answer
    x = 1,156,134.30

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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.