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Finding the Fourth Proportional to 639,026.35, 881,859.35 and 352,546.36

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Solution

The fourth proportional to 639,026.35, 881,859.35 and 352,546.36 is: 486,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,026.35 : 881,859.35 = 352,546.36 : x
  2. Step 2: Convert to fraction form
    639,026.35/881,859.35 = 352,546.36/x
  3. Step 3: Cross multiply
    639,026.35x = 881,859.35 × 352,546.36
  4. Step 4: Simplify right side
    639,026.35x = 310,896,303,874.47
  5. Step 5: Solve for x
    x = 310,896,303,874.47/639,026.35
  6. Step 6: Final answer
    x = 486,515.62

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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.