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Finding the Fourth Proportional to 657.60, 986.67 and 593.34

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Solution

The fourth proportional to 657.60, 986.67 and 593.34 is: 890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.60 : 986.67 = 593.34 : x
  2. Step 2: Convert to fraction form
    657.60/986.67 = 593.34/x
  3. Step 3: Cross multiply
    657.60x = 986.67 × 593.34
  4. Step 4: Simplify right side
    657.60x = 585,430.78
  5. Step 5: Solve for x
    x = 585,430.78/657.60
  6. Step 6: Final answer
    x = 890.25

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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.