Home / 409,181.77-613,379.01-209,596.15

Finding the Fourth Proportional to 409,181.77, 613,379.01 and 209,596.15

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Solution

The fourth proportional to 409,181.77, 613,379.01 and 209,596.15 is: 314,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,181.77 : 613,379.01 = 209,596.15 : x
  2. Step 2: Convert to fraction form
    409,181.77/613,379.01 = 209,596.15/x
  3. Step 3: Cross multiply
    409,181.77x = 613,379.01 × 209,596.15
  4. Step 4: Simplify right side
    409,181.77x = 128,561,878,986.81
  5. Step 5: Solve for x
    x = 128,561,878,986.81/409,181.77
  6. Step 6: Final answer
    x = 314,192.59

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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.