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Finding the Fourth Proportional to 473.99, 707.21 and 470.34

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Solution

The fourth proportional to 473.99, 707.21 and 470.34 is: 701.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.99 : 707.21 = 470.34 : x
  2. Step 2: Convert to fraction form
    473.99/707.21 = 470.34/x
  3. Step 3: Cross multiply
    473.99x = 707.21 × 470.34
  4. Step 4: Simplify right side
    473.99x = 332,626.80
  5. Step 5: Solve for x
    x = 332,626.80/473.99
  6. Step 6: Final answer
    x = 701.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.