Home / 1,089,588.12-1,503,609-606,142.80

Finding the Fourth Proportional to 1,089,588.12, 1,503,609 and 606,142.80

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Solution

The fourth proportional to 1,089,588.12, 1,503,609 and 606,142.80 is: 836,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,588.12 : 1,503,609 = 606,142.80 : x
  2. Step 2: Convert to fraction form
    1,089,588.12/1,503,609 = 606,142.80/x
  3. Step 3: Cross multiply
    1,089,588.12x = 1,503,609 × 606,142.80
  4. Step 4: Simplify right side
    1,089,588.12x = 911,401,769,365.20
  5. Step 5: Solve for x
    x = 911,401,769,365.20/1,089,588.12
  6. Step 6: Final answer
    x = 836,464.49

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Double scale
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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.