Home / 1,089,013.20-1,633,597.60-290,290.56

Finding the Fourth Proportional to 1,089,013.20, 1,633,597.60 and 290,290.56

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Solution

The fourth proportional to 1,089,013.20, 1,633,597.60 and 290,290.56 is: 435,456.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,013.20 : 1,633,597.60 = 290,290.56 : x
  2. Step 2: Convert to fraction form
    1,089,013.20/1,633,597.60 = 290,290.56/x
  3. Step 3: Cross multiply
    1,089,013.20x = 1,633,597.60 × 290,290.56
  4. Step 4: Simplify right side
    1,089,013.20x = 474,217,962,118.66
  5. Step 5: Solve for x
    x = 474,217,962,118.66/1,089,013.20
  6. Step 6: Final answer
    x = 435,456.58

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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.