Home / 1,913,218.80-2,640,259.80-1,053,782.16

Finding the Fourth Proportional to 1,913,218.80, 2,640,259.80 and 1,053,782.16

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Solution

The fourth proportional to 1,913,218.80, 2,640,259.80 and 1,053,782.16 is: 1,454,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,218.80 : 2,640,259.80 = 1,053,782.16 : x
  2. Step 2: Convert to fraction form
    1,913,218.80/2,640,259.80 = 1,053,782.16/x
  3. Step 3: Cross multiply
    1,913,218.80x = 2,640,259.80 × 1,053,782.16
  4. Step 4: Simplify right side
    1,913,218.80x = 2,782,258,675,005.17
  5. Step 5: Solve for x
    x = 2,782,258,675,005.17/1,913,218.80
  6. Step 6: Final answer
    x = 1,454,229.22

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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.