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Finding the Fourth Proportional to 503,740.52, 694,629.17 and 389,037.84

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Solution

The fourth proportional to 503,740.52, 694,629.17 and 389,037.84 is: 536,460.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,740.52 : 694,629.17 = 389,037.84 : x
  2. Step 2: Convert to fraction form
    503,740.52/694,629.17 = 389,037.84/x
  3. Step 3: Cross multiply
    503,740.52x = 694,629.17 × 389,037.84
  4. Step 4: Simplify right side
    503,740.52x = 270,237,028,806.64
  5. Step 5: Solve for x
    x = 270,237,028,806.64/503,740.52
  6. Step 6: Final answer
    x = 536,460.77

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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.