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Finding the Fourth Proportional to 661,824.96, 991,851.84 and 324,349.44

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Solution

The fourth proportional to 661,824.96, 991,851.84 and 324,349.44 is: 486,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,824.96 : 991,851.84 = 324,349.44 : x
  2. Step 2: Convert to fraction form
    661,824.96/991,851.84 = 324,349.44/x
  3. Step 3: Cross multiply
    661,824.96x = 991,851.84 × 324,349.44
  4. Step 4: Simplify right side
    661,824.96x = 321,706,588,866.97
  5. Step 5: Solve for x
    x = 321,706,588,866.97/661,824.96
  6. Step 6: Final answer
    x = 486,090.14

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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.