Home / 419,985.84-579,581.04-228,999.23

Finding the Fourth Proportional to 419,985.84, 579,581.04 and 228,999.23

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Solution

The fourth proportional to 419,985.84, 579,581.04 and 228,999.23 is: 316,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,985.84 : 579,581.04 = 228,999.23 : x
  2. Step 2: Convert to fraction form
    419,985.84/579,581.04 = 228,999.23/x
  3. Step 3: Cross multiply
    419,985.84x = 579,581.04 × 228,999.23
  4. Step 4: Simplify right side
    419,985.84x = 132,723,611,882.60
  5. Step 5: Solve for x
    x = 132,723,611,882.60/419,985.84
  6. Step 6: Final answer
    x = 316,019.25

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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.