Home / 930,815.70-1,396,223.55-331,796.40

Finding the Fourth Proportional to 930,815.70, 1,396,223.55 and 331,796.40

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Solution

The fourth proportional to 930,815.70, 1,396,223.55 and 331,796.40 is: 497,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,815.70 : 1,396,223.55 = 331,796.40 : x
  2. Step 2: Convert to fraction form
    930,815.70/1,396,223.55 = 331,796.40/x
  3. Step 3: Cross multiply
    930,815.70x = 1,396,223.55 × 331,796.40
  4. Step 4: Simplify right side
    930,815.70x = 463,261,947,485.22
  5. Step 5: Solve for x
    x = 463,261,947,485.22/930,815.70
  6. Step 6: Final answer
    x = 497,694.60

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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.