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Finding the Fourth Proportional to 443,534.48, 664,513.56 and 253,987.28

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Solution

The fourth proportional to 443,534.48, 664,513.56 and 253,987.28 is: 380,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,534.48 : 664,513.56 = 253,987.28 : x
  2. Step 2: Convert to fraction form
    443,534.48/664,513.56 = 253,987.28/x
  3. Step 3: Cross multiply
    443,534.48x = 664,513.56 × 253,987.28
  4. Step 4: Simplify right side
    443,534.48x = 168,777,991,627.52
  5. Step 5: Solve for x
    x = 168,777,991,627.52/443,534.48
  6. Step 6: Final answer
    x = 380,529.59

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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.