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Finding the Fourth Proportional to 444.01, 660.02 and 430.89

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Solution

The fourth proportional to 444.01, 660.02 and 430.89 is: 640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.01 : 660.02 = 430.89 : x
  2. Step 2: Convert to fraction form
    444.01/660.02 = 430.89/x
  3. Step 3: Cross multiply
    444.01x = 660.02 × 430.89
  4. Step 4: Simplify right side
    444.01x = 284,396.02
  5. Step 5: Solve for x
    x = 284,396.02/444.01
  6. Step 6: Final answer
    x = 640.52

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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.