Home / 1,222,993.72-1,687,698.66-679,115.32

Finding the Fourth Proportional to 1,222,993.72, 1,687,698.66 and 679,115.32

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Solution

The fourth proportional to 1,222,993.72, 1,687,698.66 and 679,115.32 is: 937,161.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,993.72 : 1,687,698.66 = 679,115.32 : x
  2. Step 2: Convert to fraction form
    1,222,993.72/1,687,698.66 = 679,115.32/x
  3. Step 3: Cross multiply
    1,222,993.72x = 1,687,698.66 × 679,115.32
  4. Step 4: Simplify right side
    1,222,993.72x = 1,146,142,015,549.47
  5. Step 5: Solve for x
    x = 1,146,142,015,549.47/1,222,993.72
  6. Step 6: Final answer
    x = 937,161.00

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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.