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Finding the Fourth Proportional to 675,622.49, 932,318.01 and 385,193.45

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Solution

The fourth proportional to 675,622.49, 932,318.01 and 385,193.45 is: 531,543.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,622.49 : 932,318.01 = 385,193.45 : x
  2. Step 2: Convert to fraction form
    675,622.49/932,318.01 = 385,193.45/x
  3. Step 3: Cross multiply
    675,622.49x = 932,318.01 × 385,193.45
  4. Step 4: Simplify right side
    675,622.49x = 359,122,786,107.44
  5. Step 5: Solve for x
    x = 359,122,786,107.44/675,622.49
  6. Step 6: Final answer
    x = 531,543.56

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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.