Home / 1,260,190.56-1,890,286.24-313,561.30

Finding the Fourth Proportional to 1,260,190.56, 1,890,286.24 and 313,561.30

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Solution

The fourth proportional to 1,260,190.56, 1,890,286.24 and 313,561.30 is: 470,342.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,190.56 : 1,890,286.24 = 313,561.30 : x
  2. Step 2: Convert to fraction form
    1,260,190.56/1,890,286.24 = 313,561.30/x
  3. Step 3: Cross multiply
    1,260,190.56x = 1,890,286.24 × 313,561.30
  4. Step 4: Simplify right side
    1,260,190.56x = 592,720,610,786.51
  5. Step 5: Solve for x
    x = 592,720,610,786.51/1,260,190.56
  6. Step 6: Final answer
    x = 470,342.05

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Double scale
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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.