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Finding the Fourth Proportional to 940.28, 1,410.50 and 323.98

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Solution

The fourth proportional to 940.28, 1,410.50 and 323.98 is: 486.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.28 : 1,410.50 = 323.98 : x
  2. Step 2: Convert to fraction form
    940.28/1,410.50 = 323.98/x
  3. Step 3: Cross multiply
    940.28x = 1,410.50 × 323.98
  4. Step 4: Simplify right side
    940.28x = 456,973.79
  5. Step 5: Solve for x
    x = 456,973.79/940.28
  6. Step 6: Final answer
    x = 486.00

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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.