Home / 878,280.11-1,316,403.60-403,970.03

Finding the Fourth Proportional to 878,280.11, 1,316,403.60 and 403,970.03

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Solution

The fourth proportional to 878,280.11, 1,316,403.60 and 403,970.03 is: 605,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,280.11 : 1,316,403.60 = 403,970.03 : x
  2. Step 2: Convert to fraction form
    878,280.11/1,316,403.60 = 403,970.03/x
  3. Step 3: Cross multiply
    878,280.11x = 1,316,403.60 × 403,970.03
  4. Step 4: Simplify right side
    878,280.11x = 531,787,595,202.09
  5. Step 5: Solve for x
    x = 531,787,595,202.09/878,280.11
  6. Step 6: Final answer
    x = 605,487.47

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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.