Home / 2,085,636-2,878,177.68-1,131,780

Finding the Fourth Proportional to 2,085,636, 2,878,177.68 and 1,131,780

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Solution

The fourth proportional to 2,085,636, 2,878,177.68 and 1,131,780 is: 1,561,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,636 : 2,878,177.68 = 1,131,780 : x
  2. Step 2: Convert to fraction form
    2,085,636/2,878,177.68 = 1,131,780/x
  3. Step 3: Cross multiply
    2,085,636x = 2,878,177.68 × 1,131,780
  4. Step 4: Simplify right side
    2,085,636x = 3,257,463,934,670.40
  5. Step 5: Solve for x
    x = 3,257,463,934,670.40/2,085,636
  6. Step 6: Final answer
    x = 1,561,856.40

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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.