Home / 672,943.80-1,008,054.90-419,446.20

Finding the Fourth Proportional to 672,943.80, 1,008,054.90 and 419,446.20

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Solution

The fourth proportional to 672,943.80, 1,008,054.90 and 419,446.20 is: 628,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,943.80 : 1,008,054.90 = 419,446.20 : x
  2. Step 2: Convert to fraction form
    672,943.80/1,008,054.90 = 419,446.20/x
  3. Step 3: Cross multiply
    672,943.80x = 1,008,054.90 × 419,446.20
  4. Step 4: Simplify right side
    672,943.80x = 422,824,797,196.38
  5. Step 5: Solve for x
    x = 422,824,797,196.38/672,943.80
  6. Step 6: Final answer
    x = 628,321.11

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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.