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Finding the Fourth Proportional to 512,466.60, 768,699.90 and 484,910.40

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Solution

The fourth proportional to 512,466.60, 768,699.90 and 484,910.40 is: 727,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,466.60 : 768,699.90 = 484,910.40 : x
  2. Step 2: Convert to fraction form
    512,466.60/768,699.90 = 484,910.40/x
  3. Step 3: Cross multiply
    512,466.60x = 768,699.90 × 484,910.40
  4. Step 4: Simplify right side
    512,466.60x = 372,750,575,988.96
  5. Step 5: Solve for x
    x = 372,750,575,988.96/512,466.60
  6. Step 6: Final answer
    x = 727,365.60

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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.