Home / 980,620.71-1,350,128.30-836,803.59

Finding the Fourth Proportional to 980,620.71, 1,350,128.30 and 836,803.59

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Solution

The fourth proportional to 980,620.71, 1,350,128.30 and 836,803.59 is: 1,152,119.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,620.71 : 1,350,128.30 = 836,803.59 : x
  2. Step 2: Convert to fraction form
    980,620.71/1,350,128.30 = 836,803.59/x
  3. Step 3: Cross multiply
    980,620.71x = 1,350,128.30 × 836,803.59
  4. Step 4: Simplify right side
    980,620.71x = 1,129,792,204,216.58
  5. Step 5: Solve for x
    x = 1,129,792,204,216.58/980,620.71
  6. Step 6: Final answer
    x = 1,152,119.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.