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Finding the Fourth Proportional to 442,422.66, 663,633.27 and 353,258.34

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Solution

The fourth proportional to 442,422.66, 663,633.27 and 353,258.34 is: 529,886.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,422.66 : 663,633.27 = 353,258.34 : x
  2. Step 2: Convert to fraction form
    442,422.66/663,633.27 = 353,258.34/x
  3. Step 3: Cross multiply
    442,422.66x = 663,633.27 × 353,258.34
  4. Step 4: Simplify right side
    442,422.66x = 234,433,987,328.97
  5. Step 5: Solve for x
    x = 234,433,987,328.97/442,422.66
  6. Step 6: Final answer
    x = 529,886.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.