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Finding the Fourth Proportional to 621, 926.01 and 576.36

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Solution

The fourth proportional to 621, 926.01 and 576.36 is: 859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    621 : 926.01 = 576.36 : x
  2. Step 2: Convert to fraction form
    621/926.01 = 576.36/x
  3. Step 3: Cross multiply
    621x = 926.01 × 576.36
  4. Step 4: Simplify right side
    621x = 533,715.12
  5. Step 5: Solve for x
    x = 533,715.12/621
  6. Step 6: Final answer
    x = 859.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.