Home / 1,189,557.56-1,784,685.78-479,220.28

Finding the Fourth Proportional to 1,189,557.56, 1,784,685.78 and 479,220.28

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Solution

The fourth proportional to 1,189,557.56, 1,784,685.78 and 479,220.28 is: 718,971.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,557.56 : 1,784,685.78 = 479,220.28 : x
  2. Step 2: Convert to fraction form
    1,189,557.56/1,784,685.78 = 479,220.28/x
  3. Step 3: Cross multiply
    1,189,557.56x = 1,784,685.78 × 479,220.28
  4. Step 4: Simplify right side
    1,189,557.56x = 855,257,619,203.62
  5. Step 5: Solve for x
    x = 855,257,619,203.62/1,189,557.56
  6. Step 6: Final answer
    x = 718,971.19

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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.