Home / 851,329.85-1,276,957.80-211,620.06

Finding the Fourth Proportional to 851,329.85, 1,276,957.80 and 211,620.06

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Solution

The fourth proportional to 851,329.85, 1,276,957.80 and 211,620.06 is: 317,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,329.85 : 1,276,957.80 = 211,620.06 : x
  2. Step 2: Convert to fraction form
    851,329.85/1,276,957.80 = 211,620.06/x
  3. Step 3: Cross multiply
    851,329.85x = 1,276,957.80 × 211,620.06
  4. Step 4: Simplify right side
    851,329.85x = 270,229,886,253.47
  5. Step 5: Solve for x
    x = 270,229,886,253.47/851,329.85
  6. Step 6: Final answer
    x = 317,420.90

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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.