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Finding the Fourth Proportional to 488,952.88, 674,757.42 and 285,145.13

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Solution

The fourth proportional to 488,952.88, 674,757.42 and 285,145.13 is: 393,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,952.88 : 674,757.42 = 285,145.13 : x
  2. Step 2: Convert to fraction form
    488,952.88/674,757.42 = 285,145.13/x
  3. Step 3: Cross multiply
    488,952.88x = 674,757.42 × 285,145.13
  4. Step 4: Simplify right side
    488,952.88x = 192,403,792,244.37
  5. Step 5: Solve for x
    x = 192,403,792,244.37/488,952.88
  6. Step 6: Final answer
    x = 393,501.71

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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.