Home / 1,089,112.78-1,502,760.36-659,432.62

Finding the Fourth Proportional to 1,089,112.78, 1,502,760.36 and 659,432.62

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Solution

The fourth proportional to 1,089,112.78, 1,502,760.36 and 659,432.62 is: 909,886.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,112.78 : 1,502,760.36 = 659,432.62 : x
  2. Step 2: Convert to fraction form
    1,089,112.78/1,502,760.36 = 659,432.62/x
  3. Step 3: Cross multiply
    1,089,112.78x = 1,502,760.36 × 659,432.62
  4. Step 4: Simplify right side
    1,089,112.78x = 990,969,201,426.94
  5. Step 5: Solve for x
    x = 990,969,201,426.94/1,089,112.78
  6. Step 6: Final answer
    x = 909,886.67

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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.