Home / 905,901.30-1,358,847.07-231,981.30

Finding the Fourth Proportional to 905,901.30, 1,358,847.07 and 231,981.30

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Solution

The fourth proportional to 905,901.30, 1,358,847.07 and 231,981.30 is: 347,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,901.30 : 1,358,847.07 = 231,981.30 : x
  2. Step 2: Convert to fraction form
    905,901.30/1,358,847.07 = 231,981.30/x
  3. Step 3: Cross multiply
    905,901.30x = 1,358,847.07 × 231,981.30
  4. Step 4: Simplify right side
    905,901.30x = 315,227,109,799.79
  5. Step 5: Solve for x
    x = 315,227,109,799.79/905,901.30
  6. Step 6: Final answer
    x = 347,970.70

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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.