Home / 1,221,586.56-1,685,991.81-677,897.00

Finding the Fourth Proportional to 1,221,586.56, 1,685,991.81 and 677,897.00

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Solution

The fourth proportional to 1,221,586.56, 1,685,991.81 and 677,897.00 is: 935,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,586.56 : 1,685,991.81 = 677,897.00 : x
  2. Step 2: Convert to fraction form
    1,221,586.56/1,685,991.81 = 677,897.00/x
  3. Step 3: Cross multiply
    1,221,586.56x = 1,685,991.81 × 677,897.00
  4. Step 4: Simplify right side
    1,221,586.56x = 1,142,928,781,593.61
  5. Step 5: Solve for x
    x = 1,142,928,781,593.61/1,221,586.56
  6. Step 6: Final answer
    x = 935,610.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.