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Finding the Fourth Proportional to 526.11, 723.90 and 482.91

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Solution

The fourth proportional to 526.11, 723.90 and 482.91 is: 664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.11 : 723.90 = 482.91 : x
  2. Step 2: Convert to fraction form
    526.11/723.90 = 482.91/x
  3. Step 3: Cross multiply
    526.11x = 723.90 × 482.91
  4. Step 4: Simplify right side
    526.11x = 349,578.55
  5. Step 5: Solve for x
    x = 349,578.55/526.11
  6. Step 6: Final answer
    x = 664.46

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1.5x scale

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.