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Finding the Fourth Proportional to 700.13, 966.06 and 451.78

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Solution

The fourth proportional to 700.13, 966.06 and 451.78 is: 623.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.13 : 966.06 = 451.78 : x
  2. Step 2: Convert to fraction form
    700.13/966.06 = 451.78/x
  3. Step 3: Cross multiply
    700.13x = 966.06 × 451.78
  4. Step 4: Simplify right side
    700.13x = 436,444.17
  5. Step 5: Solve for x
    x = 436,444.17/700.13
  6. Step 6: Final answer
    x = 623.38

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.