Home / 851,790.45-1,277,409.20-283,018.80

Finding the Fourth Proportional to 851,790.45, 1,277,409.20 and 283,018.80

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Solution

The fourth proportional to 851,790.45, 1,277,409.20 and 283,018.80 is: 424,436.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,790.45 : 1,277,409.20 = 283,018.80 : x
  2. Step 2: Convert to fraction form
    851,790.45/1,277,409.20 = 283,018.80/x
  3. Step 3: Cross multiply
    851,790.45x = 1,277,409.20 × 283,018.80
  4. Step 4: Simplify right side
    851,790.45x = 361,530,817,477.87
  5. Step 5: Solve for x
    x = 361,530,817,477.87/851,790.45
  6. Step 6: Final answer
    x = 424,436.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.