Home / 669,969.10-1,004,953.65-220,759.30

Finding the Fourth Proportional to 669,969.10, 1,004,953.65 and 220,759.30

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Solution

The fourth proportional to 669,969.10, 1,004,953.65 and 220,759.30 is: 331,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,969.10 : 1,004,953.65 = 220,759.30 : x
  2. Step 2: Convert to fraction form
    669,969.10/1,004,953.65 = 220,759.30/x
  3. Step 3: Cross multiply
    669,969.10x = 1,004,953.65 × 220,759.30
  4. Step 4: Simplify right side
    669,969.10x = 221,852,864,306.45
  5. Step 5: Solve for x
    x = 221,852,864,306.45/669,969.10
  6. Step 6: Final answer
    x = 331,138.95

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Double scale
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Similar ratio
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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.