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Finding the Fourth Proportional to 538,728.62, 743,479.00 and 297,010.82

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Solution

The fourth proportional to 538,728.62, 743,479.00 and 297,010.82 is: 409,893.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,728.62 : 743,479.00 = 297,010.82 : x
  2. Step 2: Convert to fraction form
    538,728.62/743,479.00 = 297,010.82/x
  3. Step 3: Cross multiply
    538,728.62x = 743,479.00 × 297,010.82
  4. Step 4: Simplify right side
    538,728.62x = 220,821,308,558.95
  5. Step 5: Solve for x
    x = 220,821,308,558.95/538,728.62
  6. Step 6: Final answer
    x = 409,893.41

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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.