Home / 2,780,718.94-4,169,554.49-861,097.21

Finding the Fourth Proportional to 2,780,718.94, 4,169,554.49 and 861,097.21

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Solution

The fourth proportional to 2,780,718.94, 4,169,554.49 and 861,097.21 is: 1,291,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,718.94 : 4,169,554.49 = 861,097.21 : x
  2. Step 2: Convert to fraction form
    2,780,718.94/4,169,554.49 = 861,097.21/x
  3. Step 3: Cross multiply
    2,780,718.94x = 4,169,554.49 × 861,097.21
  4. Step 4: Simplify right side
    2,780,718.94x = 3,590,391,748,705.86
  5. Step 5: Solve for x
    x = 3,590,391,748,705.86/2,780,718.94
  6. Step 6: Final answer
    x = 1,291,173.91

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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.