Home / 669,939.80-1,004,909.70-404,219.30

Finding the Fourth Proportional to 669,939.80, 1,004,909.70 and 404,219.30

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Solution

The fourth proportional to 669,939.80, 1,004,909.70 and 404,219.30 is: 606,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,939.80 : 1,004,909.70 = 404,219.30 : x
  2. Step 2: Convert to fraction form
    669,939.80/1,004,909.70 = 404,219.30/x
  3. Step 3: Cross multiply
    669,939.80x = 1,004,909.70 × 404,219.30
  4. Step 4: Simplify right side
    669,939.80x = 406,203,895,497.21
  5. Step 5: Solve for x
    x = 406,203,895,497.21/669,939.80
  6. Step 6: Final answer
    x = 606,328.95

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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.