Home / 1,405,879.20-2,108,991.60-458,992.80

Finding the Fourth Proportional to 1,405,879.20, 2,108,991.60 and 458,992.80

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Solution

The fourth proportional to 1,405,879.20, 2,108,991.60 and 458,992.80 is: 688,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,879.20 : 2,108,991.60 = 458,992.80 : x
  2. Step 2: Convert to fraction form
    1,405,879.20/2,108,991.60 = 458,992.80/x
  3. Step 3: Cross multiply
    1,405,879.20x = 2,108,991.60 × 458,992.80
  4. Step 4: Simplify right side
    1,405,879.20x = 968,011,959,660.48
  5. Step 5: Solve for x
    x = 968,011,959,660.48/1,405,879.20
  6. Step 6: Final answer
    x = 688,545.62

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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.