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Finding the Fourth Proportional to 578,340.46, 798,109.74 and 323,691.64

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Solution

The fourth proportional to 578,340.46, 798,109.74 and 323,691.64 is: 446,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,340.46 : 798,109.74 = 323,691.64 : x
  2. Step 2: Convert to fraction form
    578,340.46/798,109.74 = 323,691.64/x
  3. Step 3: Cross multiply
    578,340.46x = 798,109.74 × 323,691.64
  4. Step 4: Simplify right side
    578,340.46x = 258,341,450,640.57
  5. Step 5: Solve for x
    x = 258,341,450,640.57/578,340.46
  6. Step 6: Final answer
    x = 446,694.41

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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.