Home / 851,279.13-1,277,105.58-252,287.28

Finding the Fourth Proportional to 851,279.13, 1,277,105.58 and 252,287.28

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Solution

The fourth proportional to 851,279.13, 1,277,105.58 and 252,287.28 is: 378,486.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,279.13 : 1,277,105.58 = 252,287.28 : x
  2. Step 2: Convert to fraction form
    851,279.13/1,277,105.58 = 252,287.28/x
  3. Step 3: Cross multiply
    851,279.13x = 1,277,105.58 × 252,287.28
  4. Step 4: Simplify right side
    851,279.13x = 322,197,493,051.02
  5. Step 5: Solve for x
    x = 322,197,493,051.02/851,279.13
  6. Step 6: Final answer
    x = 378,486.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.