Home / 780,986.41-1,171,505.39-268,646.41

Finding the Fourth Proportional to 780,986.41, 1,171,505.39 and 268,646.41

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Solution

The fourth proportional to 780,986.41, 1,171,505.39 and 268,646.41 is: 402,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,986.41 : 1,171,505.39 = 268,646.41 : x
  2. Step 2: Convert to fraction form
    780,986.41/1,171,505.39 = 268,646.41/x
  3. Step 3: Cross multiply
    780,986.41x = 1,171,505.39 × 268,646.41
  4. Step 4: Simplify right side
    780,986.41x = 314,720,717,319.15
  5. Step 5: Solve for x
    x = 314,720,717,319.15/780,986.41
  6. Step 6: Final answer
    x = 402,978.48

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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.