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Finding the Fourth Proportional to 651.09, 898.52 and 418.62

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Solution

The fourth proportional to 651.09, 898.52 and 418.62 is: 577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.09 : 898.52 = 418.62 : x
  2. Step 2: Convert to fraction form
    651.09/898.52 = 418.62/x
  3. Step 3: Cross multiply
    651.09x = 898.52 × 418.62
  4. Step 4: Simplify right side
    651.09x = 376,139.72
  5. Step 5: Solve for x
    x = 376,139.72/651.09
  6. Step 6: Final answer
    x = 577.70

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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.