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Finding the Fourth Proportional to 555.33, 760.80 and 534.57

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Solution

The fourth proportional to 555.33, 760.80 and 534.57 is: 732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.33 : 760.80 = 534.57 : x
  2. Step 2: Convert to fraction form
    555.33/760.80 = 534.57/x
  3. Step 3: Cross multiply
    555.33x = 760.80 × 534.57
  4. Step 4: Simplify right side
    555.33x = 406,700.01
  5. Step 5: Solve for x
    x = 406,700.01/555.33
  6. Step 6: Final answer
    x = 732.35

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1.5x scale

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.