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Finding the Fourth Proportional to 1,242.69, 1,864.43 and 593.34

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Solution

The fourth proportional to 1,242.69, 1,864.43 and 593.34 is: 890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.69 : 1,864.43 = 593.34 : x
  2. Step 2: Convert to fraction form
    1,242.69/1,864.43 = 593.34/x
  3. Step 3: Cross multiply
    1,242.69x = 1,864.43 × 593.34
  4. Step 4: Simplify right side
    1,242.69x = 1,106,240.90
  5. Step 5: Solve for x
    x = 1,106,240.90/1,242.69
  6. Step 6: Final answer
    x = 890.20

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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.