Home / 684,738.30-1,027,107.45-329,666.70

Finding the Fourth Proportional to 684,738.30, 1,027,107.45 and 329,666.70

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Solution

The fourth proportional to 684,738.30, 1,027,107.45 and 329,666.70 is: 494,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,738.30 : 1,027,107.45 = 329,666.70 : x
  2. Step 2: Convert to fraction form
    684,738.30/1,027,107.45 = 329,666.70/x
  3. Step 3: Cross multiply
    684,738.30x = 1,027,107.45 × 329,666.70
  4. Step 4: Simplify right side
    684,738.30x = 338,603,123,586.92
  5. Step 5: Solve for x
    x = 338,603,123,586.92/684,738.30
  6. Step 6: Final answer
    x = 494,500.05

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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.