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Finding the Fourth Proportional to 978,110.60, 1,467,425.10 and 346,958.60

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Solution

The fourth proportional to 978,110.60, 1,467,425.10 and 346,958.60 is: 520,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,110.60 : 1,467,425.10 = 346,958.60 : x
  2. Step 2: Convert to fraction form
    978,110.60/1,467,425.10 = 346,958.60/x
  3. Step 3: Cross multiply
    978,110.60x = 1,467,425.10 × 346,958.60
  4. Step 4: Simplify right side
    978,110.60x = 509,135,758,300.86
  5. Step 5: Solve for x
    x = 509,135,758,300.86/978,110.60
  6. Step 6: Final answer
    x = 520,529.84

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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.