Home / 878,274.11-1,316,394.60-403,964.03

Finding the Fourth Proportional to 878,274.11, 1,316,394.60 and 403,964.03

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Solution

The fourth proportional to 878,274.11, 1,316,394.60 and 403,964.03 is: 605,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,274.11 : 1,316,394.60 = 403,964.03 : x
  2. Step 2: Convert to fraction form
    878,274.11/1,316,394.60 = 403,964.03/x
  3. Step 3: Cross multiply
    878,274.11x = 1,316,394.60 × 403,964.03
  4. Step 4: Simplify right side
    878,274.11x = 531,776,061,104.27
  5. Step 5: Solve for x
    x = 531,776,061,104.27/878,274.11
  6. Step 6: Final answer
    x = 605,478.47

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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.