Home / 952,827.40-1,428,803.70-420,074.20

Finding the Fourth Proportional to 952,827.40, 1,428,803.70 and 420,074.20

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Solution

The fourth proportional to 952,827.40, 1,428,803.70 and 420,074.20 is: 629,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    952,827.40 : 1,428,803.70 = 420,074.20 : x
  2. Step 2: Convert to fraction form
    952,827.40/1,428,803.70 = 420,074.20/x
  3. Step 3: Cross multiply
    952,827.40x = 1,428,803.70 × 420,074.20
  4. Step 4: Simplify right side
    952,827.40x = 600,203,571,234.54
  5. Step 5: Solve for x
    x = 600,203,571,234.54/952,827.40
  6. Step 6: Final answer
    x = 629,918.46

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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.