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Finding the Fourth Proportional to 488,507.58, 674,147.46 and 284,553.24

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Solution

The fourth proportional to 488,507.58, 674,147.46 and 284,553.24 is: 392,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,507.58 : 674,147.46 = 284,553.24 : x
  2. Step 2: Convert to fraction form
    488,507.58/674,147.46 = 284,553.24/x
  3. Step 3: Cross multiply
    488,507.58x = 674,147.46 × 284,553.24
  4. Step 4: Simplify right side
    488,507.58x = 191,830,843,980.77
  5. Step 5: Solve for x
    x = 191,830,843,980.77/488,507.58
  6. Step 6: Final answer
    x = 392,687.55

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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.