Home / 1,250,683.80-1,874,643.30-690,120.60

Finding the Fourth Proportional to 1,250,683.80, 1,874,643.30 and 690,120.60

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Solution

The fourth proportional to 1,250,683.80, 1,874,643.30 and 690,120.60 is: 1,034,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,683.80 : 1,874,643.30 = 690,120.60 : x
  2. Step 2: Convert to fraction form
    1,250,683.80/1,874,643.30 = 690,120.60/x
  3. Step 3: Cross multiply
    1,250,683.80x = 1,874,643.30 × 690,120.60
  4. Step 4: Simplify right side
    1,250,683.80x = 1,293,729,958,981.98
  5. Step 5: Solve for x
    x = 1,293,729,958,981.98/1,250,683.80
  6. Step 6: Final answer
    x = 1,034,418.10

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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.