Home / 919,275.20-1,378,912.80-446,883.20

Finding the Fourth Proportional to 919,275.20, 1,378,912.80 and 446,883.20

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Solution

The fourth proportional to 919,275.20, 1,378,912.80 and 446,883.20 is: 670,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,275.20 : 1,378,912.80 = 446,883.20 : x
  2. Step 2: Convert to fraction form
    919,275.20/1,378,912.80 = 446,883.20/x
  3. Step 3: Cross multiply
    919,275.20x = 1,378,912.80 × 446,883.20
  4. Step 4: Simplify right side
    919,275.20x = 616,212,964,584.96
  5. Step 5: Solve for x
    x = 616,212,964,584.96/919,275.20
  6. Step 6: Final answer
    x = 670,324.80

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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.