Home / 1,414,935.70-2,122,403.55-989,782.90

Finding the Fourth Proportional to 1,414,935.70, 2,122,403.55 and 989,782.90

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Solution

The fourth proportional to 1,414,935.70, 2,122,403.55 and 989,782.90 is: 1,484,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414,935.70 : 2,122,403.55 = 989,782.90 : x
  2. Step 2: Convert to fraction form
    1,414,935.70/2,122,403.55 = 989,782.90/x
  3. Step 3: Cross multiply
    1,414,935.70x = 2,122,403.55 × 989,782.90
  4. Step 4: Simplify right side
    1,414,935.70x = 2,100,718,740,689.30
  5. Step 5: Solve for x
    x = 2,100,718,740,689.30/1,414,935.70
  6. Step 6: Final answer
    x = 1,484,674.35

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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.