Home / 671,558.30-1,008,115.05-405,619.10

Finding the Fourth Proportional to 671,558.30, 1,008,115.05 and 405,619.10

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Solution

The fourth proportional to 671,558.30, 1,008,115.05 and 405,619.10 is: 608,898.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,558.30 : 1,008,115.05 = 405,619.10 : x
  2. Step 2: Convert to fraction form
    671,558.30/1,008,115.05 = 405,619.10/x
  3. Step 3: Cross multiply
    671,558.30x = 1,008,115.05 × 405,619.10
  4. Step 4: Simplify right side
    671,558.30x = 408,910,719,277.46
  5. Step 5: Solve for x
    x = 408,910,719,277.46/671,558.30
  6. Step 6: Final answer
    x = 608,898.32

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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.