Home / 2,765,356.80-4,148,035.20-770,812.80

Finding the Fourth Proportional to 2,765,356.80, 4,148,035.20 and 770,812.80

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Solution

The fourth proportional to 2,765,356.80, 4,148,035.20 and 770,812.80 is: 1,156,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765,356.80 : 4,148,035.20 = 770,812.80 : x
  2. Step 2: Convert to fraction form
    2,765,356.80/4,148,035.20 = 770,812.80/x
  3. Step 3: Cross multiply
    2,765,356.80x = 4,148,035.20 × 770,812.80
  4. Step 4: Simplify right side
    2,765,356.80x = 3,197,358,627,010.56
  5. Step 5: Solve for x
    x = 3,197,358,627,010.56/2,765,356.80
  6. Step 6: Final answer
    x = 1,156,219.20

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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.