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Finding the Fourth Proportional to 978,195.60, 1,467,548.55 and 379,176.30

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Solution

The fourth proportional to 978,195.60, 1,467,548.55 and 379,176.30 is: 568,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,195.60 : 1,467,548.55 = 379,176.30 : x
  2. Step 2: Convert to fraction form
    978,195.60/1,467,548.55 = 379,176.30/x
  3. Step 3: Cross multiply
    978,195.60x = 1,467,548.55 × 379,176.30
  4. Step 4: Simplify right side
    978,195.60x = 556,459,629,259.37
  5. Step 5: Solve for x
    x = 556,459,629,259.37/978,195.60
  6. Step 6: Final answer
    x = 568,863.35

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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.