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Finding the Fourth Proportional to 696.70, 960.47 and 434.54

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Solution

The fourth proportional to 696.70, 960.47 and 434.54 is: 599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.70 : 960.47 = 434.54 : x
  2. Step 2: Convert to fraction form
    696.70/960.47 = 434.54/x
  3. Step 3: Cross multiply
    696.70x = 960.47 × 434.54
  4. Step 4: Simplify right side
    696.70x = 417,362.63
  5. Step 5: Solve for x
    x = 417,362.63/696.70
  6. Step 6: Final answer
    x = 599.06

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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.