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Finding the Fourth Proportional to 978,369.60, 1,350,214.56 and 548,677.44

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Solution

The fourth proportional to 978,369.60, 1,350,214.56 and 548,677.44 is: 757,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,369.60 : 1,350,214.56 = 548,677.44 : x
  2. Step 2: Convert to fraction form
    978,369.60/1,350,214.56 = 548,677.44/x
  3. Step 3: Cross multiply
    978,369.60x = 1,350,214.56 × 548,677.44
  4. Step 4: Simplify right side
    978,369.60x = 740,832,268,231.53
  5. Step 5: Solve for x
    x = 740,832,268,231.53/978,369.60
  6. Step 6: Final answer
    x = 757,211.05

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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.