Home / 1,913,021.20-2,640,088.56-1,053,581.23

Finding the Fourth Proportional to 1,913,021.20, 2,640,088.56 and 1,053,581.23

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Solution

The fourth proportional to 1,913,021.20, 2,640,088.56 and 1,053,581.23 is: 1,454,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,021.20 : 2,640,088.56 = 1,053,581.23 : x
  2. Step 2: Convert to fraction form
    1,913,021.20/2,640,088.56 = 1,053,581.23/x
  3. Step 3: Cross multiply
    1,913,021.20x = 2,640,088.56 × 1,053,581.23
  4. Step 4: Simplify right side
    1,913,021.20x = 2,781,547,752,353.73
  5. Step 5: Solve for x
    x = 2,781,547,752,353.73/1,913,021.20
  6. Step 6: Final answer
    x = 1,454,007.80

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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.