Home / 1,387,830.70-1,915,099.76-843,891.94

Finding the Fourth Proportional to 1,387,830.70, 1,915,099.76 and 843,891.94

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Solution

The fourth proportional to 1,387,830.70, 1,915,099.76 and 843,891.94 is: 1,164,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,830.70 : 1,915,099.76 = 843,891.94 : x
  2. Step 2: Convert to fraction form
    1,387,830.70/1,915,099.76 = 843,891.94/x
  3. Step 3: Cross multiply
    1,387,830.70x = 1,915,099.76 × 843,891.94
  4. Step 4: Simplify right side
    1,387,830.70x = 1,616,137,251,759.93
  5. Step 5: Solve for x
    x = 1,616,137,251,759.93/1,387,830.70
  6. Step 6: Final answer
    x = 1,164,506.05

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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.