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Finding the Fourth Proportional to 526.50, 726.03 and 427.95

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Solution

The fourth proportional to 526.50, 726.03 and 427.95 is: 590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.50 : 726.03 = 427.95 : x
  2. Step 2: Convert to fraction form
    526.50/726.03 = 427.95/x
  3. Step 3: Cross multiply
    526.50x = 726.03 × 427.95
  4. Step 4: Simplify right side
    526.50x = 310,704.54
  5. Step 5: Solve for x
    x = 310,704.54/526.50
  6. Step 6: Final answer
    x = 590.13

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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.