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Finding the Fourth Proportional to 983.34, 1,475.10 and 496.38

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Solution

The fourth proportional to 983.34, 1,475.10 and 496.38 is: 744.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    983.34 : 1,475.10 = 496.38 : x
  2. Step 2: Convert to fraction form
    983.34/1,475.10 = 496.38/x
  3. Step 3: Cross multiply
    983.34x = 1,475.10 × 496.38
  4. Step 4: Simplify right side
    983.34x = 732,210.14
  5. Step 5: Solve for x
    x = 732,210.14/983.34
  6. Step 6: Final answer
    x = 744.62

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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.