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Finding the Fourth Proportional to 378,757.02, 523,377.54 and 360,306.03

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Solution

The fourth proportional to 378,757.02, 523,377.54 and 360,306.03 is: 497,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,757.02 : 523,377.54 = 360,306.03 : x
  2. Step 2: Convert to fraction form
    378,757.02/523,377.54 = 360,306.03/x
  3. Step 3: Cross multiply
    378,757.02x = 523,377.54 × 360,306.03
  4. Step 4: Simplify right side
    378,757.02x = 188,576,085,591.23
  5. Step 5: Solve for x
    x = 188,576,085,591.23/378,757.02
  6. Step 6: Final answer
    x = 497,881.42

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1.5x scale

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.