Home / 1,989,115.02-2,983,650.57-1,190,619.45

Finding the Fourth Proportional to 1,989,115.02, 2,983,650.57 and 1,190,619.45

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Solution

The fourth proportional to 1,989,115.02, 2,983,650.57 and 1,190,619.45 is: 1,785,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,115.02 : 2,983,650.57 = 1,190,619.45 : x
  2. Step 2: Convert to fraction form
    1,989,115.02/2,983,650.57 = 1,190,619.45/x
  3. Step 3: Cross multiply
    1,989,115.02x = 2,983,650.57 × 1,190,619.45
  4. Step 4: Simplify right side
    1,989,115.02x = 3,552,392,400,645.59
  5. Step 5: Solve for x
    x = 3,552,392,400,645.59/1,989,115.02
  6. Step 6: Final answer
    x = 1,785,916.03

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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.