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Finding the Fourth Proportional to 880.05, 1,319.12 and 468.77

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Solution

The fourth proportional to 880.05, 1,319.12 and 468.77 is: 702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.05 : 1,319.12 = 468.77 : x
  2. Step 2: Convert to fraction form
    880.05/1,319.12 = 468.77/x
  3. Step 3: Cross multiply
    880.05x = 1,319.12 × 468.77
  4. Step 4: Simplify right side
    880.05x = 618,363.88
  5. Step 5: Solve for x
    x = 618,363.88/880.05
  6. Step 6: Final answer
    x = 702.65

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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.