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Finding the Fourth Proportional to 479.77, 714.65 and 473.39

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Solution

The fourth proportional to 479.77, 714.65 and 473.39 is: 705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.77 : 714.65 = 473.39 : x
  2. Step 2: Convert to fraction form
    479.77/714.65 = 473.39/x
  3. Step 3: Cross multiply
    479.77x = 714.65 × 473.39
  4. Step 4: Simplify right side
    479.77x = 338,310.25
  5. Step 5: Solve for x
    x = 338,310.25/479.77
  6. Step 6: Final answer
    x = 705.15

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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.