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Finding the Fourth Proportional to 650.88, 897.12 and 429.72

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Solution

The fourth proportional to 650.88, 897.12 and 429.72 is: 592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.88 : 897.12 = 429.72 : x
  2. Step 2: Convert to fraction form
    650.88/897.12 = 429.72/x
  3. Step 3: Cross multiply
    650.88x = 897.12 × 429.72
  4. Step 4: Simplify right side
    650.88x = 385,510.41
  5. Step 5: Solve for x
    x = 385,510.41/650.88
  6. Step 6: Final answer
    x = 592.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.