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Finding the Fourth Proportional to 693.77, 957.29 and 445.04

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Solution

The fourth proportional to 693.77, 957.29 and 445.04 is: 614.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.77 : 957.29 = 445.04 : x
  2. Step 2: Convert to fraction form
    693.77/957.29 = 445.04/x
  3. Step 3: Cross multiply
    693.77x = 957.29 × 445.04
  4. Step 4: Simplify right side
    693.77x = 426,035.85
  5. Step 5: Solve for x
    x = 426,035.85/693.77
  6. Step 6: Final answer
    x = 614.09

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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.