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Finding the Fourth Proportional to 480,651.36, 721,410.38 and 256,198.74

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Solution

The fourth proportional to 480,651.36, 721,410.38 and 256,198.74 is: 384,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,651.36 : 721,410.38 = 256,198.74 : x
  2. Step 2: Convert to fraction form
    480,651.36/721,410.38 = 256,198.74/x
  3. Step 3: Cross multiply
    480,651.36x = 721,410.38 × 256,198.74
  4. Step 4: Simplify right side
    480,651.36x = 184,824,430,378.92
  5. Step 5: Solve for x
    x = 184,824,430,378.92/480,651.36
  6. Step 6: Final answer
    x = 384,529.09

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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.