Home / 1,189,208.52-1,641,108.87-679,921.56

Finding the Fourth Proportional to 1,189,208.52, 1,641,108.87 and 679,921.56

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Solution

The fourth proportional to 1,189,208.52, 1,641,108.87 and 679,921.56 is: 938,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,208.52 : 1,641,108.87 = 679,921.56 : x
  2. Step 2: Convert to fraction form
    1,189,208.52/1,641,108.87 = 679,921.56/x
  3. Step 3: Cross multiply
    1,189,208.52x = 1,641,108.87 × 679,921.56
  4. Step 4: Simplify right side
    1,189,208.52x = 1,115,825,303,020.24
  5. Step 5: Solve for x
    x = 1,115,825,303,020.24/1,189,208.52
  6. Step 6: Final answer
    x = 938,292.39

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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.