Home / 1,398,851.70-2,098,277.55-1,288,626.90

Finding the Fourth Proportional to 1,398,851.70, 2,098,277.55 and 1,288,626.90

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Solution

The fourth proportional to 1,398,851.70, 2,098,277.55 and 1,288,626.90 is: 1,932,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,851.70 : 2,098,277.55 = 1,288,626.90 : x
  2. Step 2: Convert to fraction form
    1,398,851.70/2,098,277.55 = 1,288,626.90/x
  3. Step 3: Cross multiply
    1,398,851.70x = 2,098,277.55 × 1,288,626.90
  4. Step 4: Simplify right side
    1,398,851.70x = 2,703,896,894,596.09
  5. Step 5: Solve for x
    x = 2,703,896,894,596.09/1,398,851.70
  6. Step 6: Final answer
    x = 1,932,940.35

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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.