Home / 673,078.80-1,008,257.40-419,581.20

Finding the Fourth Proportional to 673,078.80, 1,008,257.40 and 419,581.20

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Solution

The fourth proportional to 673,078.80, 1,008,257.40 and 419,581.20 is: 628,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,078.80 : 1,008,257.40 = 419,581.20 : x
  2. Step 2: Convert to fraction form
    673,078.80/1,008,257.40 = 419,581.20/x
  3. Step 3: Cross multiply
    673,078.80x = 1,008,257.40 × 419,581.20
  4. Step 4: Simplify right side
    673,078.80x = 423,045,849,800.88
  5. Step 5: Solve for x
    x = 423,045,849,800.88/673,078.80
  6. Step 6: Final answer
    x = 628,523.51

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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.