Home / 1,121,443.20-1,682,553.60-490,809.60

Finding the Fourth Proportional to 1,121,443.20, 1,682,553.60 and 490,809.60

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Solution

The fourth proportional to 1,121,443.20, 1,682,553.60 and 490,809.60 is: 736,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,443.20 : 1,682,553.60 = 490,809.60 : x
  2. Step 2: Convert to fraction form
    1,121,443.20/1,682,553.60 = 490,809.60/x
  3. Step 3: Cross multiply
    1,121,443.20x = 1,682,553.60 × 490,809.60
  4. Step 4: Simplify right side
    1,121,443.20x = 825,813,459,394.56
  5. Step 5: Solve for x
    x = 825,813,459,394.56/1,121,443.20
  6. Step 6: Final answer
    x = 736,384.56

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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.