Home / 907,739.40-1,361,609.10-276,571.20

Finding the Fourth Proportional to 907,739.40, 1,361,609.10 and 276,571.20

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Solution

The fourth proportional to 907,739.40, 1,361,609.10 and 276,571.20 is: 414,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,739.40 : 1,361,609.10 = 276,571.20 : x
  2. Step 2: Convert to fraction form
    907,739.40/1,361,609.10 = 276,571.20/x
  3. Step 3: Cross multiply
    907,739.40x = 1,361,609.10 × 276,571.20
  4. Step 4: Simplify right side
    907,739.40x = 376,581,862,717.92
  5. Step 5: Solve for x
    x = 376,581,862,717.92/907,739.40
  6. Step 6: Final answer
    x = 414,856.80

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Double scale
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Similar ratio
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1.5x scale

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.