Home / 409,857.40-565,602.09-228,569.52

Finding the Fourth Proportional to 409,857.40, 565,602.09 and 228,569.52

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Solution

The fourth proportional to 409,857.40, 565,602.09 and 228,569.52 is: 315,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,857.40 : 565,602.09 = 228,569.52 : x
  2. Step 2: Convert to fraction form
    409,857.40/565,602.09 = 228,569.52/x
  3. Step 3: Cross multiply
    409,857.40x = 565,602.09 × 228,569.52
  4. Step 4: Simplify right side
    409,857.40x = 129,279,398,222.30
  5. Step 5: Solve for x
    x = 129,279,398,222.30/409,857.40
  6. Step 6: Final answer
    x = 315,425.31

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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.