Home / 851,354.57-1,276,994.95-211,644.92

Finding the Fourth Proportional to 851,354.57, 1,276,994.95 and 211,644.92

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Solution

The fourth proportional to 851,354.57, 1,276,994.95 and 211,644.92 is: 317,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,354.57 : 1,276,994.95 = 211,644.92 : x
  2. Step 2: Convert to fraction form
    851,354.57/1,276,994.95 = 211,644.92/x
  3. Step 3: Cross multiply
    851,354.57x = 1,276,994.95 × 211,644.92
  4. Step 4: Simplify right side
    851,354.57x = 270,269,497,887.03
  5. Step 5: Solve for x
    x = 270,269,497,887.03/851,354.57
  6. Step 6: Final answer
    x = 317,458.21

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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.