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Finding the Fourth Proportional to 538,790.60, 743,536.86 and 297,073.64

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Solution

The fourth proportional to 538,790.60, 743,536.86 and 297,073.64 is: 409,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,790.60 : 743,536.86 = 297,073.64 : x
  2. Step 2: Convert to fraction form
    538,790.60/743,536.86 = 297,073.64/x
  3. Step 3: Cross multiply
    538,790.60x = 743,536.86 × 297,073.64
  4. Step 4: Simplify right side
    538,790.60x = 220,885,201,474.37
  5. Step 5: Solve for x
    x = 220,885,201,474.37/538,790.60
  6. Step 6: Final answer
    x = 409,964.84

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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.