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Finding the Fourth Proportional to 640.01, 957.21 and 593.30

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Solution

The fourth proportional to 640.01, 957.21 and 593.30 is: 887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    640.01 : 957.21 = 593.30 : x
  2. Step 2: Convert to fraction form
    640.01/957.21 = 593.30/x
  3. Step 3: Cross multiply
    640.01x = 957.21 × 593.30
  4. Step 4: Simplify right side
    640.01x = 567,912.69
  5. Step 5: Solve for x
    x = 567,912.69/640.01
  6. Step 6: Final answer
    x = 887.35

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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.