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Finding the Fourth Proportional to 639,052.26, 881,894.96 and 352,580.77

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Solution

The fourth proportional to 639,052.26, 881,894.96 and 352,580.77 is: 486,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,052.26 : 881,894.96 = 352,580.77 : x
  2. Step 2: Convert to fraction form
    639,052.26/881,894.96 = 352,580.77/x
  3. Step 3: Cross multiply
    639,052.26x = 881,894.96 × 352,580.77
  4. Step 4: Simplify right side
    639,052.26x = 310,939,202,293.02
  5. Step 5: Solve for x
    x = 310,939,202,293.02/639,052.26
  6. Step 6: Final answer
    x = 486,563.03

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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.