Home / 1,244,400.20-1,867,982.70-771,619.40

Finding the Fourth Proportional to 1,244,400.20, 1,867,982.70 and 771,619.40

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Solution

The fourth proportional to 1,244,400.20, 1,867,982.70 and 771,619.40 is: 1,158,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,400.20 : 1,867,982.70 = 771,619.40 : x
  2. Step 2: Convert to fraction form
    1,244,400.20/1,867,982.70 = 771,619.40/x
  3. Step 3: Cross multiply
    1,244,400.20x = 1,867,982.70 × 771,619.40
  4. Step 4: Simplify right side
    1,244,400.20x = 1,441,371,690,184.38
  5. Step 5: Solve for x
    x = 1,441,371,690,184.38/1,244,400.20
  6. Step 6: Final answer
    x = 1,158,286.29

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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.