Home / 419,890.86-579,274.92-247,740.48

Finding the Fourth Proportional to 419,890.86, 579,274.92 and 247,740.48

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Solution

The fourth proportional to 419,890.86, 579,274.92 and 247,740.48 is: 341,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,890.86 : 579,274.92 = 247,740.48 : x
  2. Step 2: Convert to fraction form
    419,890.86/579,274.92 = 247,740.48/x
  3. Step 3: Cross multiply
    419,890.86x = 579,274.92 × 247,740.48
  4. Step 4: Simplify right side
    419,890.86x = 143,509,846,732.76
  5. Step 5: Solve for x
    x = 143,509,846,732.76/419,890.86
  6. Step 6: Final answer
    x = 341,778.92

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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.