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Finding the Fourth Proportional to 681,425.55, 940,354.58 and 375,530.27

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Solution

The fourth proportional to 681,425.55, 940,354.58 and 375,530.27 is: 518,224.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,425.55 : 940,354.58 = 375,530.27 : x
  2. Step 2: Convert to fraction form
    681,425.55/940,354.58 = 375,530.27/x
  3. Step 3: Cross multiply
    681,425.55x = 940,354.58 × 375,530.27
  4. Step 4: Simplify right side
    681,425.55x = 353,131,605,560.19
  5. Step 5: Solve for x
    x = 353,131,605,560.19/681,425.55
  6. Step 6: Final answer
    x = 518,224.78

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1.5x scale

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.