Home / 685,200.92-1,027,385.18-343,246.66

Finding the Fourth Proportional to 685,200.92, 1,027,385.18 and 343,246.66

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Solution

The fourth proportional to 685,200.92, 1,027,385.18 and 343,246.66 is: 514,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,200.92 : 1,027,385.18 = 343,246.66 : x
  2. Step 2: Convert to fraction form
    685,200.92/1,027,385.18 = 343,246.66/x
  3. Step 3: Cross multiply
    685,200.92x = 1,027,385.18 × 343,246.66
  4. Step 4: Simplify right side
    685,200.92x = 352,646,531,568.50
  5. Step 5: Solve for x
    x = 352,646,531,568.50/685,200.92
  6. Step 6: Final answer
    x = 514,661.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.