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Finding the Fourth Proportional to 680,753.92, 939,375.48 and 374,826.64

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Solution

The fourth proportional to 680,753.92, 939,375.48 and 374,826.64 is: 517,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,753.92 : 939,375.48 = 374,826.64 : x
  2. Step 2: Convert to fraction form
    680,753.92/939,375.48 = 374,826.64/x
  3. Step 3: Cross multiply
    680,753.92x = 939,375.48 × 374,826.64
  4. Step 4: Simplify right side
    680,753.92x = 352,102,954,866.79
  5. Step 5: Solve for x
    x = 352,102,954,866.79/680,753.92
  6. Step 6: Final answer
    x = 517,225.01

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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.