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Finding the Fourth Proportional to 940.55, 1,410.98 and 324.27

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Solution

The fourth proportional to 940.55, 1,410.98 and 324.27 is: 486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.55 : 1,410.98 = 324.27 : x
  2. Step 2: Convert to fraction form
    940.55/1,410.98 = 324.27/x
  3. Step 3: Cross multiply
    940.55x = 1,410.98 × 324.27
  4. Step 4: Simplify right side
    940.55x = 457,536.86
  5. Step 5: Solve for x
    x = 457,536.86/940.55
  6. Step 6: Final answer
    x = 486.46

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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.