Home / 1,213,644.60-1,821,503.70-540,761.40

Finding the Fourth Proportional to 1,213,644.60, 1,821,503.70 and 540,761.40

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Solution

The fourth proportional to 1,213,644.60, 1,821,503.70 and 540,761.40 is: 811,604.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,644.60 : 1,821,503.70 = 540,761.40 : x
  2. Step 2: Convert to fraction form
    1,213,644.60/1,821,503.70 = 540,761.40/x
  3. Step 3: Cross multiply
    1,213,644.60x = 1,821,503.70 × 540,761.40
  4. Step 4: Simplify right side
    1,213,644.60x = 984,998,890,917.18
  5. Step 5: Solve for x
    x = 984,998,890,917.18/1,213,644.60
  6. Step 6: Final answer
    x = 811,604.07

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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.