Home / 1,430,189.85-1,973,180.16-809,910.21

Finding the Fourth Proportional to 1,430,189.85, 1,973,180.16 and 809,910.21

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Solution

The fourth proportional to 1,430,189.85, 1,973,180.16 and 809,910.21 is: 1,117,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,189.85 : 1,973,180.16 = 809,910.21 : x
  2. Step 2: Convert to fraction form
    1,430,189.85/1,973,180.16 = 809,910.21/x
  3. Step 3: Cross multiply
    1,430,189.85x = 1,973,180.16 × 809,910.21
  4. Step 4: Simplify right side
    1,430,189.85x = 1,598,098,757,753.43
  5. Step 5: Solve for x
    x = 1,598,098,757,753.43/1,430,189.85
  6. Step 6: Final answer
    x = 1,117,403.23

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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.