Home / 1,813,947.90-2,720,921.85-661,280.94

Finding the Fourth Proportional to 1,813,947.90, 2,720,921.85 and 661,280.94

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Solution

The fourth proportional to 1,813,947.90, 2,720,921.85 and 661,280.94 is: 991,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,947.90 : 2,720,921.85 = 661,280.94 : x
  2. Step 2: Convert to fraction form
    1,813,947.90/2,720,921.85 = 661,280.94/x
  3. Step 3: Cross multiply
    1,813,947.90x = 2,720,921.85 × 661,280.94
  4. Step 4: Simplify right side
    1,813,947.90x = 1,799,293,758,634.54
  5. Step 5: Solve for x
    x = 1,799,293,758,634.54/1,813,947.90
  6. Step 6: Final answer
    x = 991,921.41

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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.