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Finding the Fourth Proportional to 538,910.84, 808,898.07 and 286,190.60

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Solution

The fourth proportional to 538,910.84, 808,898.07 and 286,190.60 is: 429,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,910.84 : 808,898.07 = 286,190.60 : x
  2. Step 2: Convert to fraction form
    538,910.84/808,898.07 = 286,190.60/x
  3. Step 3: Cross multiply
    538,910.84x = 808,898.07 × 286,190.60
  4. Step 4: Simplify right side
    538,910.84x = 231,499,023,992.14
  5. Step 5: Solve for x
    x = 231,499,023,992.14/538,910.84
  6. Step 6: Final answer
    x = 429,568.32

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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.