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Finding the Fourth Proportional to 477.66, 714.87 and 476.58

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Solution

The fourth proportional to 477.66, 714.87 and 476.58 is: 713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.66 : 714.87 = 476.58 : x
  2. Step 2: Convert to fraction form
    477.66/714.87 = 476.58/x
  3. Step 3: Cross multiply
    477.66x = 714.87 × 476.58
  4. Step 4: Simplify right side
    477.66x = 340,692.74
  5. Step 5: Solve for x
    x = 340,692.74/477.66
  6. Step 6: Final answer
    x = 713.25

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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.