Home / 892,151.20-1,338,226.80-820,266.40

Finding the Fourth Proportional to 892,151.20, 1,338,226.80 and 820,266.40

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Solution

The fourth proportional to 892,151.20, 1,338,226.80 and 820,266.40 is: 1,230,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,151.20 : 1,338,226.80 = 820,266.40 : x
  2. Step 2: Convert to fraction form
    892,151.20/1,338,226.80 = 820,266.40/x
  3. Step 3: Cross multiply
    892,151.20x = 1,338,226.80 × 820,266.40
  4. Step 4: Simplify right side
    892,151.20x = 1,097,702,479,619.52
  5. Step 5: Solve for x
    x = 1,097,702,479,619.52/892,151.20
  6. Step 6: Final answer
    x = 1,230,399.60

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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.