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Finding the Fourth Proportional to 978,030.60, 1,467,774.90 and 504,472.20

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Solution

The fourth proportional to 978,030.60, 1,467,774.90 and 504,472.20 is: 757,084.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,030.60 : 1,467,774.90 = 504,472.20 : x
  2. Step 2: Convert to fraction form
    978,030.60/1,467,774.90 = 504,472.20/x
  3. Step 3: Cross multiply
    978,030.60x = 1,467,774.90 × 504,472.20
  4. Step 4: Simplify right side
    978,030.60x = 740,451,632,907.78
  5. Step 5: Solve for x
    x = 740,451,632,907.78/978,030.60
  6. Step 6: Final answer
    x = 757,084.32

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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.