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Finding the Fourth Proportional to 538,560.77, 743,059.37 and 347,682.65

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Solution

The fourth proportional to 538,560.77, 743,059.37 and 347,682.65 is: 479,702.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,560.77 : 743,059.37 = 347,682.65 : x
  2. Step 2: Convert to fraction form
    538,560.77/743,059.37 = 347,682.65/x
  3. Step 3: Cross multiply
    538,560.77x = 743,059.37 × 347,682.65
  4. Step 4: Simplify right side
    538,560.77x = 258,348,848,022.84
  5. Step 5: Solve for x
    x = 258,348,848,022.84/538,560.77
  6. Step 6: Final answer
    x = 479,702.32

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Double scale
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1.5x scale

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.