Home / 1,299,279.90-1,948,918.89-352,789.50

Finding the Fourth Proportional to 1,299,279.90, 1,948,918.89 and 352,789.50

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Solution

The fourth proportional to 1,299,279.90, 1,948,918.89 and 352,789.50 is: 529,183.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,279.90 : 1,948,918.89 = 352,789.50 : x
  2. Step 2: Convert to fraction form
    1,299,279.90/1,948,918.89 = 352,789.50/x
  3. Step 3: Cross multiply
    1,299,279.90x = 1,948,918.89 × 352,789.50
  4. Step 4: Simplify right side
    1,299,279.90x = 687,558,120,743.66
  5. Step 5: Solve for x
    x = 687,558,120,743.66/1,299,279.90
  6. Step 6: Final answer
    x = 529,183.99

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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.