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Finding the Fourth Proportional to 488,440.40, 674,047.76 and 297,453.80

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Solution

The fourth proportional to 488,440.40, 674,047.76 and 297,453.80 is: 410,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,440.40 : 674,047.76 = 297,453.80 : x
  2. Step 2: Convert to fraction form
    488,440.40/674,047.76 = 297,453.80/x
  3. Step 3: Cross multiply
    488,440.40x = 674,047.76 × 297,453.80
  4. Step 4: Simplify right side
    488,440.40x = 200,498,062,735.98
  5. Step 5: Solve for x
    x = 200,498,062,735.98/488,440.40
  6. Step 6: Final answer
    x = 410,486.24

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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.