Home / 777,330.78-1,065,724.46-763,161.18

Finding the Fourth Proportional to 777,330.78, 1,065,724.46 and 763,161.18

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Solution

The fourth proportional to 777,330.78, 1,065,724.46 and 763,161.18 is: 1,046,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,330.78 : 1,065,724.46 = 763,161.18 : x
  2. Step 2: Convert to fraction form
    777,330.78/1,065,724.46 = 763,161.18/x
  3. Step 3: Cross multiply
    777,330.78x = 1,065,724.46 × 763,161.18
  4. Step 4: Simplify right side
    777,330.78x = 813,319,532,632.66
  5. Step 5: Solve for x
    x = 813,319,532,632.66/777,330.78
  6. Step 6: Final answer
    x = 1,046,297.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.