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Finding the Fourth Proportional to 604,819.60, 907,229.40 and 309,907.60

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Solution

The fourth proportional to 604,819.60, 907,229.40 and 309,907.60 is: 464,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,819.60 : 907,229.40 = 309,907.60 : x
  2. Step 2: Convert to fraction form
    604,819.60/907,229.40 = 309,907.60/x
  3. Step 3: Cross multiply
    604,819.60x = 907,229.40 × 309,907.60
  4. Step 4: Simplify right side
    604,819.60x = 281,157,286,003.44
  5. Step 5: Solve for x
    x = 281,157,286,003.44/604,819.60
  6. Step 6: Final answer
    x = 464,861.40

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Similar ratio
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1.5x scale

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.