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Finding the Fourth Proportional to 708.26, 977.12 and 522.19

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Solution

The fourth proportional to 708.26, 977.12 and 522.19 is: 720.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.26 : 977.12 = 522.19 : x
  2. Step 2: Convert to fraction form
    708.26/977.12 = 522.19/x
  3. Step 3: Cross multiply
    708.26x = 977.12 × 522.19
  4. Step 4: Simplify right side
    708.26x = 510,237.37
  5. Step 5: Solve for x
    x = 510,237.37/708.26
  6. Step 6: Final answer
    x = 720.41

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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.