Home / 978,321.47-1,350,277.25-634,583.39

Finding the Fourth Proportional to 978,321.47, 1,350,277.25 and 634,583.39

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Solution

The fourth proportional to 978,321.47, 1,350,277.25 and 634,583.39 is: 875,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,321.47 : 1,350,277.25 = 634,583.39 : x
  2. Step 2: Convert to fraction form
    978,321.47/1,350,277.25 = 634,583.39/x
  3. Step 3: Cross multiply
    978,321.47x = 1,350,277.25 × 634,583.39
  4. Step 4: Simplify right side
    978,321.47x = 856,863,504,820.58
  5. Step 5: Solve for x
    x = 856,863,504,820.58/978,321.47
  6. Step 6: Final answer
    x = 875,850.66

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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.