Home / 769,573.82-1,154,360.74-208,608.32

Finding the Fourth Proportional to 769,573.82, 1,154,360.74 and 208,608.32

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Solution

The fourth proportional to 769,573.82, 1,154,360.74 and 208,608.32 is: 312,912.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,573.82 : 1,154,360.74 = 208,608.32 : x
  2. Step 2: Convert to fraction form
    769,573.82/1,154,360.74 = 208,608.32/x
  3. Step 3: Cross multiply
    769,573.82x = 1,154,360.74 × 208,608.32
  4. Step 4: Simplify right side
    769,573.82x = 240,809,254,645.36
  5. Step 5: Solve for x
    x = 240,809,254,645.36/769,573.82
  6. Step 6: Final answer
    x = 312,912.48

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Double scale
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Similar ratio
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1.5x scale

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.