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Finding the Fourth Proportional to 556.35, 834.53 and 522.15

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Solution

The fourth proportional to 556.35, 834.53 and 522.15 is: 783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.35 : 834.53 = 522.15 : x
  2. Step 2: Convert to fraction form
    556.35/834.53 = 522.15/x
  3. Step 3: Cross multiply
    556.35x = 834.53 × 522.15
  4. Step 4: Simplify right side
    556.35x = 435,749.84
  5. Step 5: Solve for x
    x = 435,749.84/556.35
  6. Step 6: Final answer
    x = 783.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.