Home / 1,099,809.36-1,517,834.70-640,899

Finding the Fourth Proportional to 1,099,809.36, 1,517,834.70 and 640,899

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Solution

The fourth proportional to 1,099,809.36, 1,517,834.70 and 640,899 is: 884,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,809.36 : 1,517,834.70 = 640,899 : x
  2. Step 2: Convert to fraction form
    1,099,809.36/1,517,834.70 = 640,899/x
  3. Step 3: Cross multiply
    1,099,809.36x = 1,517,834.70 × 640,899
  4. Step 4: Simplify right side
    1,099,809.36x = 972,778,741,395.30
  5. Step 5: Solve for x
    x = 972,778,741,395.30/1,099,809.36
  6. Step 6: Final answer
    x = 884,497.60

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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.