Home / 669,976.88-1,004,749.30-220,590.72

Finding the Fourth Proportional to 669,976.88, 1,004,749.30 and 220,590.72

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Solution

The fourth proportional to 669,976.88, 1,004,749.30 and 220,590.72 is: 330,814.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,976.88 : 1,004,749.30 = 220,590.72 : x
  2. Step 2: Convert to fraction form
    669,976.88/1,004,749.30 = 220,590.72/x
  3. Step 3: Cross multiply
    669,976.88x = 1,004,749.30 × 220,590.72
  4. Step 4: Simplify right side
    669,976.88x = 221,638,371,506.50
  5. Step 5: Solve for x
    x = 221,638,371,506.50/669,976.88
  6. Step 6: Final answer
    x = 330,814.96

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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.