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Finding the Fourth Proportional to 978,266.60, 1,467,659.10 and 347,114.60

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Solution

The fourth proportional to 978,266.60, 1,467,659.10 and 347,114.60 is: 520,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,266.60 : 1,467,659.10 = 347,114.60 : x
  2. Step 2: Convert to fraction form
    978,266.60/1,467,659.10 = 347,114.60/x
  3. Step 3: Cross multiply
    978,266.60x = 1,467,659.10 × 347,114.60
  4. Step 4: Simplify right side
    978,266.60x = 509,445,901,432.86
  5. Step 5: Solve for x
    x = 509,445,901,432.86/978,266.60
  6. Step 6: Final answer
    x = 520,763.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.