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Finding the Fourth Proportional to 706.48, 973.91 and 495.99

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Solution

The fourth proportional to 706.48, 973.91 and 495.99 is: 683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.48 : 973.91 = 495.99 : x
  2. Step 2: Convert to fraction form
    706.48/973.91 = 495.99/x
  3. Step 3: Cross multiply
    706.48x = 973.91 × 495.99
  4. Step 4: Simplify right side
    706.48x = 483,050.86
  5. Step 5: Solve for x
    x = 483,050.86/706.48
  6. Step 6: Final answer
    x = 683.75

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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.