Home / 1,227,420-1,841,195.61-386,037.36

Finding the Fourth Proportional to 1,227,420, 1,841,195.61 and 386,037.36

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Solution

The fourth proportional to 1,227,420, 1,841,195.61 and 386,037.36 is: 579,076.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,420 : 1,841,195.61 = 386,037.36 : x
  2. Step 2: Convert to fraction form
    1,227,420/1,841,195.61 = 386,037.36/x
  3. Step 3: Cross multiply
    1,227,420x = 1,841,195.61 × 386,037.36
  4. Step 4: Simplify right side
    1,227,420x = 710,770,292,527.99
  5. Step 5: Solve for x
    x = 710,770,292,527.99/1,227,420
  6. Step 6: Final answer
    x = 579,076.68

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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.