Home / 1,089,392.75-1,503,362-612,464.75

Finding the Fourth Proportional to 1,089,392.75, 1,503,362 and 612,464.75

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Solution

The fourth proportional to 1,089,392.75, 1,503,362 and 612,464.75 is: 845,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,392.75 : 1,503,362 = 612,464.75 : x
  2. Step 2: Convert to fraction form
    1,089,392.75/1,503,362 = 612,464.75/x
  3. Step 3: Cross multiply
    1,089,392.75x = 1,503,362 × 612,464.75
  4. Step 4: Simplify right side
    1,089,392.75x = 920,756,231,489.50
  5. Step 5: Solve for x
    x = 920,756,231,489.50/1,089,392.75
  6. Step 6: Final answer
    x = 845,201.36

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.