Home / 488,949.25-674,752.40-285,141.51

Finding the Fourth Proportional to 488,949.25, 674,752.40 and 285,141.51

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Solution

The fourth proportional to 488,949.25, 674,752.40 and 285,141.51 is: 393,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,949.25 : 674,752.40 = 285,141.51 : x
  2. Step 2: Convert to fraction form
    488,949.25/674,752.40 = 285,141.51/x
  3. Step 3: Cross multiply
    488,949.25x = 674,752.40 × 285,141.51
  4. Step 4: Simplify right side
    488,949.25x = 192,399,918,212.12
  5. Step 5: Solve for x
    x = 192,399,918,212.12/488,949.25
  6. Step 6: Final answer
    x = 393,496.70

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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.