Home / 1,421,388.79-2,131,476.28-822,763.15

Finding the Fourth Proportional to 1,421,388.79, 2,131,476.28 and 822,763.15

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Solution

The fourth proportional to 1,421,388.79, 2,131,476.28 and 822,763.15 is: 1,233,793.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,388.79 : 2,131,476.28 = 822,763.15 : x
  2. Step 2: Convert to fraction form
    1,421,388.79/2,131,476.28 = 822,763.15/x
  3. Step 3: Cross multiply
    1,421,388.79x = 2,131,476.28 × 822,763.15
  4. Step 4: Simplify right side
    1,421,388.79x = 1,753,700,138,283.08
  5. Step 5: Solve for x
    x = 1,753,700,138,283.08/1,421,388.79
  6. Step 6: Final answer
    x = 1,233,793.42

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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.