Home / 419,516.52-578,929.98-228,530.04

Finding the Fourth Proportional to 419,516.52, 578,929.98 and 228,530.04

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Solution

The fourth proportional to 419,516.52, 578,929.98 and 228,530.04 is: 315,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,516.52 : 578,929.98 = 228,530.04 : x
  2. Step 2: Convert to fraction form
    419,516.52/578,929.98 = 228,530.04/x
  3. Step 3: Cross multiply
    419,516.52x = 578,929.98 × 228,530.04
  4. Step 4: Simplify right side
    419,516.52x = 132,302,891,486.60
  5. Step 5: Solve for x
    x = 132,302,891,486.60/419,516.52
  6. Step 6: Final answer
    x = 315,369.92

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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.