Home / 1,258,987.83-1,889,039.43-659,805.87

Finding the Fourth Proportional to 1,258,987.83, 1,889,039.43 and 659,805.87

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Solution

The fourth proportional to 1,258,987.83, 1,889,039.43 and 659,805.87 is: 990,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,987.83 : 1,889,039.43 = 659,805.87 : x
  2. Step 2: Convert to fraction form
    1,258,987.83/1,889,039.43 = 659,805.87/x
  3. Step 3: Cross multiply
    1,258,987.83x = 1,889,039.43 × 659,805.87
  4. Step 4: Simplify right side
    1,258,987.83x = 1,246,399,304,575.45
  5. Step 5: Solve for x
    x = 1,246,399,304,575.45/1,258,987.83
  6. Step 6: Final answer
    x = 990,001.07

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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.