Home / 861,798.51-1,189,236.37-494,256.67

Finding the Fourth Proportional to 861,798.51, 1,189,236.37 and 494,256.67

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Solution

The fourth proportional to 861,798.51, 1,189,236.37 and 494,256.67 is: 682,048.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,798.51 : 1,189,236.37 = 494,256.67 : x
  2. Step 2: Convert to fraction form
    861,798.51/1,189,236.37 = 494,256.67/x
  3. Step 3: Cross multiply
    861,798.51x = 1,189,236.37 × 494,256.67
  4. Step 4: Simplify right side
    861,798.51x = 587,788,008,079.09
  5. Step 5: Solve for x
    x = 587,788,008,079.09/861,798.51
  6. Step 6: Final answer
    x = 682,048.07

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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.