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Finding the Fourth Proportional to 700.00, 966.40 and 451.68

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Solution

The fourth proportional to 700.00, 966.40 and 451.68 is: 623.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.00 : 966.40 = 451.68 : x
  2. Step 2: Convert to fraction form
    700.00/966.40 = 451.68/x
  3. Step 3: Cross multiply
    700.00x = 966.40 × 451.68
  4. Step 4: Simplify right side
    700.00x = 436,504.23
  5. Step 5: Solve for x
    x = 436,504.23/700.00
  6. Step 6: Final answer
    x = 623.58

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1.5x scale

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.