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Finding the Fourth Proportional to 538,960.80, 743,784.36 and 297,250.80

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Solution

The fourth proportional to 538,960.80, 743,784.36 and 297,250.80 is: 410,216.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,960.80 : 743,784.36 = 297,250.80 : x
  2. Step 2: Convert to fraction form
    538,960.80/743,784.36 = 297,250.80/x
  3. Step 3: Cross multiply
    538,960.80x = 743,784.36 × 297,250.80
  4. Step 4: Simplify right side
    538,960.80x = 221,090,496,037.49
  5. Step 5: Solve for x
    x = 221,090,496,037.49/538,960.80
  6. Step 6: Final answer
    x = 410,216.28

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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.