Home / 1,387,784.90-1,915,216.26-843,830.60

Finding the Fourth Proportional to 1,387,784.90, 1,915,216.26 and 843,830.60

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Solution

The fourth proportional to 1,387,784.90, 1,915,216.26 and 843,830.60 is: 1,164,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,784.90 : 1,915,216.26 = 843,830.60 : x
  2. Step 2: Convert to fraction form
    1,387,784.90/1,915,216.26 = 843,830.60/x
  3. Step 3: Cross multiply
    1,387,784.90x = 1,915,216.26 × 843,830.60
  4. Step 4: Simplify right side
    1,387,784.90x = 1,616,118,085,805.56
  5. Step 5: Solve for x
    x = 1,616,118,085,805.56/1,387,784.90
  6. Step 6: Final answer
    x = 1,164,530.67

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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.