Home / 1,000,682.40-1,381,150.20-919,982.08

Finding the Fourth Proportional to 1,000,682.40, 1,381,150.20 and 919,982.08

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Solution

The fourth proportional to 1,000,682.40, 1,381,150.20 and 919,982.08 is: 1,269,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,682.40 : 1,381,150.20 = 919,982.08 : x
  2. Step 2: Convert to fraction form
    1,000,682.40/1,381,150.20 = 919,982.08/x
  3. Step 3: Cross multiply
    1,000,682.40x = 1,381,150.20 × 919,982.08
  4. Step 4: Simplify right side
    1,000,682.40x = 1,270,633,433,788.42
  5. Step 5: Solve for x
    x = 1,270,633,433,788.42/1,000,682.40
  6. Step 6: Final answer
    x = 1,269,766.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.