Home / 538,455.20-743,064.72-296,739.68

Finding the Fourth Proportional to 538,455.20, 743,064.72 and 296,739.68

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Solution

The fourth proportional to 538,455.20, 743,064.72 and 296,739.68 is: 409,498.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,455.20 : 743,064.72 = 296,739.68 : x
  2. Step 2: Convert to fraction form
    538,455.20/743,064.72 = 296,739.68/x
  3. Step 3: Cross multiply
    538,455.20x = 743,064.72 × 296,739.68
  4. Step 4: Simplify right side
    538,455.20x = 220,496,787,232.09
  5. Step 5: Solve for x
    x = 220,496,787,232.09/538,455.20
  6. Step 6: Final answer
    x = 409,498.85

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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.