Home / 1,906,804.80-2,857,874.40-840,715.20

Finding the Fourth Proportional to 1,906,804.80, 2,857,874.40 and 840,715.20

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Solution

The fourth proportional to 1,906,804.80, 2,857,874.40 and 840,715.20 is: 1,260,044.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906,804.80 : 2,857,874.40 = 840,715.20 : x
  2. Step 2: Convert to fraction form
    1,906,804.80/2,857,874.40 = 840,715.20/x
  3. Step 3: Cross multiply
    1,906,804.80x = 2,857,874.40 × 840,715.20
  4. Step 4: Simplify right side
    1,906,804.80x = 2,402,658,447,770.88
  5. Step 5: Solve for x
    x = 2,402,658,447,770.88/1,906,804.80
  6. Step 6: Final answer
    x = 1,260,044.26

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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.