Home / 1,019,922.30-1,530,260.10-420,935.40

Finding the Fourth Proportional to 1,019,922.30, 1,530,260.10 and 420,935.40

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Solution

The fourth proportional to 1,019,922.30, 1,530,260.10 and 420,935.40 is: 631,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,922.30 : 1,530,260.10 = 420,935.40 : x
  2. Step 2: Convert to fraction form
    1,019,922.30/1,530,260.10 = 420,935.40/x
  3. Step 3: Cross multiply
    1,019,922.30x = 1,530,260.10 × 420,935.40
  4. Step 4: Simplify right side
    1,019,922.30x = 644,140,647,297.54
  5. Step 5: Solve for x
    x = 644,140,647,297.54/1,019,922.30
  6. Step 6: Final answer
    x = 631,558.55

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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.