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Finding the Fourth Proportional to 681,576.95, 940,563.84 and 371,482.22

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Solution

The fourth proportional to 681,576.95, 940,563.84 and 371,482.22 is: 512,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,576.95 : 940,563.84 = 371,482.22 : x
  2. Step 2: Convert to fraction form
    681,576.95/940,563.84 = 371,482.22/x
  3. Step 3: Cross multiply
    681,576.95x = 940,563.84 × 371,482.22
  4. Step 4: Simplify right side
    681,576.95x = 349,402,743,334.93
  5. Step 5: Solve for x
    x = 349,402,743,334.93/681,576.95
  6. Step 6: Final answer
    x = 512,638.73

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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.