Home / 851,323.07-1,276,947.70-211,613.28

Finding the Fourth Proportional to 851,323.07, 1,276,947.70 and 211,613.28

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Solution

The fourth proportional to 851,323.07, 1,276,947.70 and 211,613.28 is: 317,410.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,323.07 : 1,276,947.70 = 211,613.28 : x
  2. Step 2: Convert to fraction form
    851,323.07/1,276,947.70 = 211,613.28/x
  3. Step 3: Cross multiply
    851,323.07x = 1,276,947.70 × 211,613.28
  4. Step 4: Simplify right side
    851,323.07x = 270,219,085,867.87
  5. Step 5: Solve for x
    x = 270,219,085,867.87/851,323.07
  6. Step 6: Final answer
    x = 317,410.74

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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.