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Finding the Fourth Proportional to 681,562.80, 940,518.27 and 375,638.27

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Solution

The fourth proportional to 681,562.80, 940,518.27 and 375,638.27 is: 518,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,562.80 : 940,518.27 = 375,638.27 : x
  2. Step 2: Convert to fraction form
    681,562.80/940,518.27 = 375,638.27/x
  3. Step 3: Cross multiply
    681,562.80x = 940,518.27 × 375,638.27
  4. Step 4: Simplify right side
    681,562.80x = 353,294,651,143.60
  5. Step 5: Solve for x
    x = 353,294,651,143.60/681,562.80
  6. Step 6: Final answer
    x = 518,359.65

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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.