Home / 641,845.62-885,743.86-347,495.52

Finding the Fourth Proportional to 641,845.62, 885,743.86 and 347,495.52

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Solution

The fourth proportional to 641,845.62, 885,743.86 and 347,495.52 is: 479,542.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,845.62 : 885,743.86 = 347,495.52 : x
  2. Step 2: Convert to fraction form
    641,845.62/885,743.86 = 347,495.52/x
  3. Step 3: Cross multiply
    641,845.62x = 885,743.86 × 347,495.52
  4. Step 4: Simplify right side
    641,845.62x = 307,792,021,339.55
  5. Step 5: Solve for x
    x = 307,792,021,339.55/641,845.62
  6. Step 6: Final answer
    x = 479,542.14

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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.