Home / 831,834.26-1,147,984.43-469,125.78

Finding the Fourth Proportional to 831,834.26, 1,147,984.43 and 469,125.78

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Solution

The fourth proportional to 831,834.26, 1,147,984.43 and 469,125.78 is: 647,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,834.26 : 1,147,984.43 = 469,125.78 : x
  2. Step 2: Convert to fraction form
    831,834.26/1,147,984.43 = 469,125.78/x
  3. Step 3: Cross multiply
    831,834.26x = 1,147,984.43 × 469,125.78
  4. Step 4: Simplify right side
    831,834.26x = 538,549,089,118.97
  5. Step 5: Solve for x
    x = 538,549,089,118.97/831,834.26
  6. Step 6: Final answer
    x = 647,423.55

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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.