Home / 1,339,128.52-1,848,291.62-880,285.48

Finding the Fourth Proportional to 1,339,128.52, 1,848,291.62 and 880,285.48

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Solution

The fourth proportional to 1,339,128.52, 1,848,291.62 and 880,285.48 is: 1,214,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,128.52 : 1,848,291.62 = 880,285.48 : x
  2. Step 2: Convert to fraction form
    1,339,128.52/1,848,291.62 = 880,285.48/x
  3. Step 3: Cross multiply
    1,339,128.52x = 1,848,291.62 × 880,285.48
  4. Step 4: Simplify right side
    1,339,128.52x = 1,627,024,275,891.68
  5. Step 5: Solve for x
    x = 1,627,024,275,891.68/1,339,128.52
  6. Step 6: Final answer
    x = 1,214,987.40

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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.