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Finding the Fourth Proportional to 602.88, 903.33 and 580.11

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Solution

The fourth proportional to 602.88, 903.33 and 580.11 is: 869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.88 : 903.33 = 580.11 : x
  2. Step 2: Convert to fraction form
    602.88/903.33 = 580.11/x
  3. Step 3: Cross multiply
    602.88x = 903.33 × 580.11
  4. Step 4: Simplify right side
    602.88x = 524,030.77
  5. Step 5: Solve for x
    x = 524,030.77/602.88
  6. Step 6: Final answer
    x = 869.21

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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.