Home / 1,131,126-1,560,963.48-621,817.20

Finding the Fourth Proportional to 1,131,126, 1,560,963.48 and 621,817.20

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Solution

The fourth proportional to 1,131,126, 1,560,963.48 and 621,817.20 is: 858,113.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,126 : 1,560,963.48 = 621,817.20 : x
  2. Step 2: Convert to fraction form
    1,131,126/1,560,963.48 = 621,817.20/x
  3. Step 3: Cross multiply
    1,131,126x = 1,560,963.48 × 621,817.20
  4. Step 4: Simplify right side
    1,131,126x = 970,633,940,435.86
  5. Step 5: Solve for x
    x = 970,633,940,435.86/1,131,126
  6. Step 6: Final answer
    x = 858,113.01

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Double scale
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1.5x scale

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.