Home / 505,051.20-758,451.60-268,855.20

Finding the Fourth Proportional to 505,051.20, 758,451.60 and 268,855.20

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Solution

The fourth proportional to 505,051.20, 758,451.60 and 268,855.20 is: 403,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,051.20 : 758,451.60 = 268,855.20 : x
  2. Step 2: Convert to fraction form
    505,051.20/758,451.60 = 268,855.20/x
  3. Step 3: Cross multiply
    505,051.20x = 758,451.60 × 268,855.20
  4. Step 4: Simplify right side
    505,051.20x = 203,913,656,608.32
  5. Step 5: Solve for x
    x = 203,913,656,608.32/505,051.20
  6. Step 6: Final answer
    x = 403,748.48

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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.