Home / 488,961.56-674,769.42-285,153.82

Finding the Fourth Proportional to 488,961.56, 674,769.42 and 285,153.82

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Solution

The fourth proportional to 488,961.56, 674,769.42 and 285,153.82 is: 393,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,961.56 : 674,769.42 = 285,153.82 : x
  2. Step 2: Convert to fraction form
    488,961.56/674,769.42 = 285,153.82/x
  3. Step 3: Cross multiply
    488,961.56x = 674,769.42 × 285,153.82
  4. Step 4: Simplify right side
    488,961.56x = 192,413,076,045.26
  5. Step 5: Solve for x
    x = 192,413,076,045.26/488,961.56
  6. Step 6: Final answer
    x = 393,513.70

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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.