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Finding the Fourth Proportional to 556.07, 760.55 and 547.56

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Solution

The fourth proportional to 556.07, 760.55 and 547.56 is: 748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.07 : 760.55 = 547.56 : x
  2. Step 2: Convert to fraction form
    556.07/760.55 = 547.56/x
  3. Step 3: Cross multiply
    556.07x = 760.55 × 547.56
  4. Step 4: Simplify right side
    556.07x = 416,444.02
  5. Step 5: Solve for x
    x = 416,444.02/556.07
  6. Step 6: Final answer
    x = 748.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.