Home / 1,405,884.70-2,108,999.85-458,998.30

Finding the Fourth Proportional to 1,405,884.70, 2,108,999.85 and 458,998.30

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Solution

The fourth proportional to 1,405,884.70, 2,108,999.85 and 458,998.30 is: 688,553.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,884.70 : 2,108,999.85 = 458,998.30 : x
  2. Step 2: Convert to fraction form
    1,405,884.70/2,108,999.85 = 458,998.30/x
  3. Step 3: Cross multiply
    1,405,884.70x = 2,108,999.85 × 458,998.30
  4. Step 4: Simplify right side
    1,405,884.70x = 968,027,345,850.26
  5. Step 5: Solve for x
    x = 968,027,345,850.26/1,405,884.70
  6. Step 6: Final answer
    x = 688,553.87

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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.