Home / 878,945.41-1,325,005.97-820,355.21

Finding the Fourth Proportional to 878,945.41, 1,325,005.97 and 820,355.21

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Solution

The fourth proportional to 878,945.41, 1,325,005.97 and 820,355.21 is: 1,236,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,945.41 : 1,325,005.97 = 820,355.21 : x
  2. Step 2: Convert to fraction form
    878,945.41/1,325,005.97 = 820,355.21/x
  3. Step 3: Cross multiply
    878,945.41x = 1,325,005.97 × 820,355.21
  4. Step 4: Simplify right side
    878,945.41x = 1,086,975,546,196.46
  5. Step 5: Solve for x
    x = 1,086,975,546,196.46/878,945.41
  6. Step 6: Final answer
    x = 1,236,681.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.