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Finding the Fourth Proportional to 798.43, 1,101.65 and 466.74

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Solution

The fourth proportional to 798.43, 1,101.65 and 466.74 is: 643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.43 : 1,101.65 = 466.74 : x
  2. Step 2: Convert to fraction form
    798.43/1,101.65 = 466.74/x
  3. Step 3: Cross multiply
    798.43x = 1,101.65 × 466.74
  4. Step 4: Simplify right side
    798.43x = 514,184.12
  5. Step 5: Solve for x
    x = 514,184.12/798.43
  6. Step 6: Final answer
    x = 643.99

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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.