Home / 419,824.34-579,358.47-274,729.65

Finding the Fourth Proportional to 419,824.34, 579,358.47 and 274,729.65

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Solution

The fourth proportional to 419,824.34, 579,358.47 and 274,729.65 is: 379,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,824.34 : 579,358.47 = 274,729.65 : x
  2. Step 2: Convert to fraction form
    419,824.34/579,358.47 = 274,729.65/x
  3. Step 3: Cross multiply
    419,824.34x = 579,358.47 × 274,729.65
  4. Step 4: Simplify right side
    419,824.34x = 159,166,946,790.84
  5. Step 5: Solve for x
    x = 159,166,946,790.84/419,824.34
  6. Step 6: Final answer
    x = 379,127.49

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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.