Home / 747,465.30-1,121,015.70-214,930.80

Finding the Fourth Proportional to 747,465.30, 1,121,015.70 and 214,930.80

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Solution

The fourth proportional to 747,465.30, 1,121,015.70 and 214,930.80 is: 322,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,465.30 : 1,121,015.70 = 214,930.80 : x
  2. Step 2: Convert to fraction form
    747,465.30/1,121,015.70 = 214,930.80/x
  3. Step 3: Cross multiply
    747,465.30x = 1,121,015.70 × 214,930.80
  4. Step 4: Simplify right side
    747,465.30x = 240,940,801,213.56
  5. Step 5: Solve for x
    x = 240,940,801,213.56/747,465.30
  6. Step 6: Final answer
    x = 322,343.79

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Double scale
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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.