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Finding the Fourth Proportional to 633.16, 943.71 and 621.01

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Solution

The fourth proportional to 633.16, 943.71 and 621.01 is: 925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.16 : 943.71 = 621.01 : x
  2. Step 2: Convert to fraction form
    633.16/943.71 = 621.01/x
  3. Step 3: Cross multiply
    633.16x = 943.71 × 621.01
  4. Step 4: Simplify right side
    633.16x = 586,050.24
  5. Step 5: Solve for x
    x = 586,050.24/633.16
  6. Step 6: Final answer
    x = 925.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.