Home / 669,406.77-1,004,142.42-220,117.68

Finding the Fourth Proportional to 669,406.77, 1,004,142.42 and 220,117.68

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Solution

The fourth proportional to 669,406.77, 1,004,142.42 and 220,117.68 is: 330,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,406.77 : 1,004,142.42 = 220,117.68 : x
  2. Step 2: Convert to fraction form
    669,406.77/1,004,142.42 = 220,117.68/x
  3. Step 3: Cross multiply
    669,406.77x = 1,004,142.42 × 220,117.68
  4. Step 4: Simplify right side
    669,406.77x = 221,029,499,879.99
  5. Step 5: Solve for x
    x = 221,029,499,879.99/669,406.77
  6. Step 6: Final answer
    x = 330,187.13

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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.