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Finding the Fourth Proportional to 697.06, 960.42 and 463.78

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Solution

The fourth proportional to 697.06, 960.42 and 463.78 is: 639.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.06 : 960.42 = 463.78 : x
  2. Step 2: Convert to fraction form
    697.06/960.42 = 463.78/x
  3. Step 3: Cross multiply
    697.06x = 960.42 × 463.78
  4. Step 4: Simplify right side
    697.06x = 445,423.59
  5. Step 5: Solve for x
    x = 445,423.59/697.06
  6. Step 6: Final answer
    x = 639.00

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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.