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Finding the Fourth Proportional to 880.30, 1,320.02 and 469.33

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Solution

The fourth proportional to 880.30, 1,320.02 and 469.33 is: 703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.30 : 1,320.02 = 469.33 : x
  2. Step 2: Convert to fraction form
    880.30/1,320.02 = 469.33/x
  3. Step 3: Cross multiply
    880.30x = 1,320.02 × 469.33
  4. Step 4: Simplify right side
    880.30x = 619,519.34
  5. Step 5: Solve for x
    x = 619,519.34/880.30
  6. Step 6: Final answer
    x = 703.76

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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.