Home / 1,818,138.40-2,727,207.60-806,869.60

Finding the Fourth Proportional to 1,818,138.40, 2,727,207.60 and 806,869.60

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Solution

The fourth proportional to 1,818,138.40, 2,727,207.60 and 806,869.60 is: 1,210,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,138.40 : 2,727,207.60 = 806,869.60 : x
  2. Step 2: Convert to fraction form
    1,818,138.40/2,727,207.60 = 806,869.60/x
  3. Step 3: Cross multiply
    1,818,138.40x = 2,727,207.60 × 806,869.60
  4. Step 4: Simplify right side
    1,818,138.40x = 2,200,500,905,328.96
  5. Step 5: Solve for x
    x = 2,200,500,905,328.96/1,818,138.40
  6. Step 6: Final answer
    x = 1,210,304.40

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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.