Home / 1,913,406-2,640,500.28-1,053,963.60

Finding the Fourth Proportional to 1,913,406, 2,640,500.28 and 1,053,963.60

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Solution

The fourth proportional to 1,913,406, 2,640,500.28 and 1,053,963.60 is: 1,454,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,406 : 2,640,500.28 = 1,053,963.60 : x
  2. Step 2: Convert to fraction form
    1,913,406/2,640,500.28 = 1,053,963.60/x
  3. Step 3: Cross multiply
    1,913,406x = 2,640,500.28 × 1,053,963.60
  4. Step 4: Simplify right side
    1,913,406x = 2,782,991,180,909.81
  5. Step 5: Solve for x
    x = 2,782,991,180,909.81/1,913,406
  6. Step 6: Final answer
    x = 1,454,469.77

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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.