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Finding the Fourth Proportional to 547,141.62, 821,001.36 and 388,244.34

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Solution

The fourth proportional to 547,141.62, 821,001.36 and 388,244.34 is: 582,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,141.62 : 821,001.36 = 388,244.34 : x
  2. Step 2: Convert to fraction form
    547,141.62/821,001.36 = 388,244.34/x
  3. Step 3: Cross multiply
    547,141.62x = 821,001.36 × 388,244.34
  4. Step 4: Simplify right side
    547,141.62x = 318,749,131,152.30
  5. Step 5: Solve for x
    x = 318,749,131,152.30/547,141.62
  6. Step 6: Final answer
    x = 582,571.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.