Home / 1,913,029.70-2,640,100.33-1,053,589.74

Finding the Fourth Proportional to 1,913,029.70, 2,640,100.33 and 1,053,589.74

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Solution

The fourth proportional to 1,913,029.70, 2,640,100.33 and 1,053,589.74 is: 1,454,019.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,029.70 : 2,640,100.33 = 1,053,589.74 : x
  2. Step 2: Convert to fraction form
    1,913,029.70/2,640,100.33 = 1,053,589.74/x
  3. Step 3: Cross multiply
    1,913,029.70x = 2,640,100.33 × 1,053,589.74
  4. Step 4: Simplify right side
    1,913,029.70x = 2,781,582,620,258.61
  5. Step 5: Solve for x
    x = 2,781,582,620,258.61/1,913,029.70
  6. Step 6: Final answer
    x = 1,454,019.57

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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.