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Finding the Fourth Proportional to 538,808.60, 808,212.90 and 433,832.60

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Solution

The fourth proportional to 538,808.60, 808,212.90 and 433,832.60 is: 650,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,808.60 : 808,212.90 = 433,832.60 : x
  2. Step 2: Convert to fraction form
    538,808.60/808,212.90 = 433,832.60/x
  3. Step 3: Cross multiply
    538,808.60x = 808,212.90 × 433,832.60
  4. Step 4: Simplify right side
    538,808.60x = 350,629,103,760.54
  5. Step 5: Solve for x
    x = 350,629,103,760.54/538,808.60
  6. Step 6: Final answer
    x = 650,748.90

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Similar ratio
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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.