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Finding the Fourth Proportional to 823,785.60, 1,235,793.60 and 350,467.20

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Solution

The fourth proportional to 823,785.60, 1,235,793.60 and 350,467.20 is: 525,749.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,785.60 : 1,235,793.60 = 350,467.20 : x
  2. Step 2: Convert to fraction form
    823,785.60/1,235,793.60 = 350,467.20/x
  3. Step 3: Cross multiply
    823,785.60x = 1,235,793.60 × 350,467.20
  4. Step 4: Simplify right side
    823,785.60x = 433,105,122,769.92
  5. Step 5: Solve for x
    x = 433,105,122,769.92/823,785.60
  6. Step 6: Final answer
    x = 525,749.81

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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.