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Finding the Fourth Proportional to 533,218.58, 735,850.40 and 318,377.42

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Solution

The fourth proportional to 533,218.58, 735,850.40 and 318,377.42 is: 439,366.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,218.58 : 735,850.40 = 318,377.42 : x
  2. Step 2: Convert to fraction form
    533,218.58/735,850.40 = 318,377.42/x
  3. Step 3: Cross multiply
    533,218.58x = 735,850.40 × 318,377.42
  4. Step 4: Simplify right side
    533,218.58x = 234,278,151,857.97
  5. Step 5: Solve for x
    x = 234,278,151,857.97/533,218.58
  6. Step 6: Final answer
    x = 439,366.07

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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.