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Finding the Fourth Proportional to 518,200.10, 778,466.55 and 504,203.30

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Solution

The fourth proportional to 518,200.10, 778,466.55 and 504,203.30 is: 757,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,200.10 : 778,466.55 = 504,203.30 : x
  2. Step 2: Convert to fraction form
    518,200.10/778,466.55 = 504,203.30/x
  3. Step 3: Cross multiply
    518,200.10x = 778,466.55 × 504,203.30
  4. Step 4: Simplify right side
    518,200.10x = 392,505,403,449.62
  5. Step 5: Solve for x
    x = 392,505,403,449.62/518,200.10
  6. Step 6: Final answer
    x = 757,439.85

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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.