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Finding the Fourth Proportional to 700.58, 966.62 and 479.60

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Solution

The fourth proportional to 700.58, 966.62 and 479.60 is: 661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.58 : 966.62 = 479.60 : x
  2. Step 2: Convert to fraction form
    700.58/966.62 = 479.60/x
  3. Step 3: Cross multiply
    700.58x = 966.62 × 479.60
  4. Step 4: Simplify right side
    700.58x = 463,583.72
  5. Step 5: Solve for x
    x = 463,583.72/700.58
  6. Step 6: Final answer
    x = 661.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.