Home / 815,279.10-1,222,538.97-302,587.19

Finding the Fourth Proportional to 815,279.10, 1,222,538.97 and 302,587.19

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Solution

The fourth proportional to 815,279.10, 1,222,538.97 and 302,587.19 is: 453,739.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,279.10 : 1,222,538.97 = 302,587.19 : x
  2. Step 2: Convert to fraction form
    815,279.10/1,222,538.97 = 302,587.19/x
  3. Step 3: Cross multiply
    815,279.10x = 1,222,538.97 × 302,587.19
  4. Step 4: Simplify right side
    815,279.10x = 369,924,625,485.10
  5. Step 5: Solve for x
    x = 369,924,625,485.10/815,279.10
  6. Step 6: Final answer
    x = 453,739.86

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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.