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Finding the Fourth Proportional to 533,744.91, 736,495.23 and 318,839.36

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Solution

The fourth proportional to 533,744.91, 736,495.23 and 318,839.36 is: 439,954.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,744.91 : 736,495.23 = 318,839.36 : x
  2. Step 2: Convert to fraction form
    533,744.91/736,495.23 = 318,839.36/x
  3. Step 3: Cross multiply
    533,744.91x = 736,495.23 × 318,839.36
  4. Step 4: Simplify right side
    533,744.91x = 234,823,665,289.42
  5. Step 5: Solve for x
    x = 234,823,665,289.42/533,744.91
  6. Step 6: Final answer
    x = 439,954.86

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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.