Home / 1,290,615.56-1,936,317.18-659,972.36

Finding the Fourth Proportional to 1,290,615.56, 1,936,317.18 and 659,972.36

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Solution

The fourth proportional to 1,290,615.56, 1,936,317.18 and 659,972.36 is: 990,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,615.56 : 1,936,317.18 = 659,972.36 : x
  2. Step 2: Convert to fraction form
    1,290,615.56/1,936,317.18 = 659,972.36/x
  3. Step 3: Cross multiply
    1,290,615.56x = 1,936,317.18 × 659,972.36
  4. Step 4: Simplify right side
    1,290,615.56x = 1,277,915,818,993.14
  5. Step 5: Solve for x
    x = 1,277,915,818,993.14/1,290,615.56
  6. Step 6: Final answer
    x = 990,159.93

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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.