Home / 1,913,019.81-2,640,086.64-1,053,579.84

Finding the Fourth Proportional to 1,913,019.81, 2,640,086.64 and 1,053,579.84

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Solution

The fourth proportional to 1,913,019.81, 2,640,086.64 and 1,053,579.84 is: 1,454,005.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,019.81 : 2,640,086.64 = 1,053,579.84 : x
  2. Step 2: Convert to fraction form
    1,913,019.81/2,640,086.64 = 1,053,579.84/x
  3. Step 3: Cross multiply
    1,913,019.81x = 2,640,086.64 × 1,053,579.84
  4. Step 4: Simplify right side
    1,913,019.81x = 2,781,542,041,289.01
  5. Step 5: Solve for x
    x = 2,781,542,041,289.01/1,913,019.81
  6. Step 6: Final answer
    x = 1,454,005.88

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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.