Home / 1,214,205.80-1,821,308.70-654,333.80

Finding the Fourth Proportional to 1,214,205.80, 1,821,308.70 and 654,333.80

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Solution

The fourth proportional to 1,214,205.80, 1,821,308.70 and 654,333.80 is: 981,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,205.80 : 1,821,308.70 = 654,333.80 : x
  2. Step 2: Convert to fraction form
    1,214,205.80/1,821,308.70 = 654,333.80/x
  3. Step 3: Cross multiply
    1,214,205.80x = 1,821,308.70 × 654,333.80
  4. Step 4: Simplify right side
    1,214,205.80x = 1,191,743,842,644.06
  5. Step 5: Solve for x
    x = 1,191,743,842,644.06/1,214,205.80
  6. Step 6: Final answer
    x = 981,500.70

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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.