Home / 909.03-1,254.60-516.03

Finding the Fourth Proportional to 909.03, 1,254.60 and 516.03

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Solution

The fourth proportional to 909.03, 1,254.60 and 516.03 is: 712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    909.03 : 1,254.60 = 516.03 : x
  2. Step 2: Convert to fraction form
    909.03/1,254.60 = 516.03/x
  3. Step 3: Cross multiply
    909.03x = 1,254.60 × 516.03
  4. Step 4: Simplify right side
    909.03x = 647,411.24
  5. Step 5: Solve for x
    x = 647,411.24/909.03
  6. Step 6: Final answer
    x = 712.20

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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.