Home / 1,121,490.20-1,682,624.10-490,856.60

Finding the Fourth Proportional to 1,121,490.20, 1,682,624.10 and 490,856.60

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Solution

The fourth proportional to 1,121,490.20, 1,682,624.10 and 490,856.60 is: 736,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,490.20 : 1,682,624.10 = 490,856.60 : x
  2. Step 2: Convert to fraction form
    1,121,490.20/1,682,624.10 = 490,856.60/x
  3. Step 3: Cross multiply
    1,121,490.20x = 1,682,624.10 × 490,856.60
  4. Step 4: Simplify right side
    1,121,490.20x = 825,927,144,804.06
  5. Step 5: Solve for x
    x = 825,927,144,804.06/1,121,490.20
  6. Step 6: Final answer
    x = 736,455.07

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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.