Home / 409,861.90-565,608.30-228,574.02

Finding the Fourth Proportional to 409,861.90, 565,608.30 and 228,574.02

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Solution

The fourth proportional to 409,861.90, 565,608.30 and 228,574.02 is: 315,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,861.90 : 565,608.30 = 228,574.02 : x
  2. Step 2: Convert to fraction form
    409,861.90/565,608.30 = 228,574.02/x
  3. Step 3: Cross multiply
    409,861.90x = 565,608.30 × 228,574.02
  4. Step 4: Simplify right side
    409,861.90x = 129,283,362,876.37
  5. Step 5: Solve for x
    x = 129,283,362,876.37/409,861.90
  6. Step 6: Final answer
    x = 315,431.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.