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Finding the Fourth Proportional to 480,296.56, 662,790.77 and 276,412.97

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Solution

The fourth proportional to 480,296.56, 662,790.77 and 276,412.97 is: 381,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,296.56 : 662,790.77 = 276,412.97 : x
  2. Step 2: Convert to fraction form
    480,296.56/662,790.77 = 276,412.97/x
  3. Step 3: Cross multiply
    480,296.56x = 662,790.77 × 276,412.97
  4. Step 4: Simplify right side
    480,296.56x = 183,203,965,499.20
  5. Step 5: Solve for x
    x = 183,203,965,499.20/480,296.56
  6. Step 6: Final answer
    x = 381,439.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.