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Finding the Fourth Proportional to 681,570, 940,528.22 and 375,645.44

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Solution

The fourth proportional to 681,570, 940,528.22 and 375,645.44 is: 518,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,570 : 940,528.22 = 375,645.44 : x
  2. Step 2: Convert to fraction form
    681,570/940,528.22 = 375,645.44/x
  3. Step 3: Cross multiply
    681,570x = 940,528.22 × 375,645.44
  4. Step 4: Simplify right side
    681,570x = 353,305,137,034.32
  5. Step 5: Solve for x
    x = 353,305,137,034.32/681,570
  6. Step 6: Final answer
    x = 518,369.55

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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.