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Finding the Fourth Proportional to 606.45, 913.42 and 577.29

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Solution

The fourth proportional to 606.45, 913.42 and 577.29 is: 869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.45 : 913.42 = 577.29 : x
  2. Step 2: Convert to fraction form
    606.45/913.42 = 577.29/x
  3. Step 3: Cross multiply
    606.45x = 913.42 × 577.29
  4. Step 4: Simplify right side
    606.45x = 527,308.23
  5. Step 5: Solve for x
    x = 527,308.23/606.45
  6. Step 6: Final answer
    x = 869.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.