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Finding the Fourth Proportional to 639,052.01, 881,894.61 and 352,580.52

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Solution

The fourth proportional to 639,052.01, 881,894.61 and 352,580.52 is: 486,562.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,052.01 : 881,894.61 = 352,580.52 : x
  2. Step 2: Convert to fraction form
    639,052.01/881,894.61 = 352,580.52/x
  3. Step 3: Cross multiply
    639,052.01x = 881,894.61 × 352,580.52
  4. Step 4: Simplify right side
    639,052.01x = 310,938,860,179.00
  5. Step 5: Solve for x
    x = 310,938,860,179.00/639,052.01
  6. Step 6: Final answer
    x = 486,562.69

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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.