Home / 1,912,210.32-2,638,254.36-1,085,146.80

Finding the Fourth Proportional to 1,912,210.32, 2,638,254.36 and 1,085,146.80

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Solution

The fourth proportional to 1,912,210.32, 2,638,254.36 and 1,085,146.80 is: 1,497,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,210.32 : 2,638,254.36 = 1,085,146.80 : x
  2. Step 2: Convert to fraction form
    1,912,210.32/2,638,254.36 = 1,085,146.80/x
  3. Step 3: Cross multiply
    1,912,210.32x = 2,638,254.36 × 1,085,146.80
  4. Step 4: Simplify right side
    1,912,210.32x = 2,862,893,276,340.05
  5. Step 5: Solve for x
    x = 2,862,893,276,340.05/1,912,210.32
  6. Step 6: Final answer
    x = 1,497,164.43

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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.