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Finding the Fourth Proportional to 700.69, 966.45 and 435.29

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Solution

The fourth proportional to 700.69, 966.45 and 435.29 is: 600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.69 : 966.45 = 435.29 : x
  2. Step 2: Convert to fraction form
    700.69/966.45 = 435.29/x
  3. Step 3: Cross multiply
    700.69x = 966.45 × 435.29
  4. Step 4: Simplify right side
    700.69x = 420,686.02
  5. Step 5: Solve for x
    x = 420,686.02/700.69
  6. Step 6: Final answer
    x = 600.39

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Double scale
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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.