Home / 1,914,697.80-2,872,046.70-1,821,385.80

Finding the Fourth Proportional to 1,914,697.80, 2,872,046.70 and 1,821,385.80

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Solution

The fourth proportional to 1,914,697.80, 2,872,046.70 and 1,821,385.80 is: 2,732,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914,697.80 : 2,872,046.70 = 1,821,385.80 : x
  2. Step 2: Convert to fraction form
    1,914,697.80/2,872,046.70 = 1,821,385.80/x
  3. Step 3: Cross multiply
    1,914,697.80x = 2,872,046.70 × 1,821,385.80
  4. Step 4: Simplify right side
    1,914,697.80x = 5,231,105,076,316.86
  5. Step 5: Solve for x
    x = 5,231,105,076,316.86/1,914,697.80
  6. Step 6: Final answer
    x = 2,732,078.70

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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.