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Finding the Fourth Proportional to 465,765.20, 699,492.60 and 407,704.40

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Solution

The fourth proportional to 465,765.20, 699,492.60 and 407,704.40 is: 612,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,765.20 : 699,492.60 = 407,704.40 : x
  2. Step 2: Convert to fraction form
    465,765.20/699,492.60 = 407,704.40/x
  3. Step 3: Cross multiply
    465,765.20x = 699,492.60 × 407,704.40
  4. Step 4: Simplify right side
    465,765.20x = 285,186,210,787.44
  5. Step 5: Solve for x
    x = 285,186,210,787.44/465,765.20
  6. Step 6: Final answer
    x = 612,296.09

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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.