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Finding the Fourth Proportional to 544.86, 750.86 and 389.34

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Solution

The fourth proportional to 544.86, 750.86 and 389.34 is: 536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.86 : 750.86 = 389.34 : x
  2. Step 2: Convert to fraction form
    544.86/750.86 = 389.34/x
  3. Step 3: Cross multiply
    544.86x = 750.86 × 389.34
  4. Step 4: Simplify right side
    544.86x = 292,339.83
  5. Step 5: Solve for x
    x = 292,339.83/544.86
  6. Step 6: Final answer
    x = 536.54

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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.