Home / 820,238.40-1,230,703.20-446,529.60

Finding the Fourth Proportional to 820,238.40, 1,230,703.20 and 446,529.60

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Solution

The fourth proportional to 820,238.40, 1,230,703.20 and 446,529.60 is: 669,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,238.40 : 1,230,703.20 = 446,529.60 : x
  2. Step 2: Convert to fraction form
    820,238.40/1,230,703.20 = 446,529.60/x
  3. Step 3: Cross multiply
    820,238.40x = 1,230,703.20 × 446,529.60
  4. Step 4: Simplify right side
    820,238.40x = 549,545,407,614.72
  5. Step 5: Solve for x
    x = 549,545,407,614.72/820,238.40
  6. Step 6: Final answer
    x = 669,982.54

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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.