Home / 891,122.40-1,336,683.60-859,629.60

Finding the Fourth Proportional to 891,122.40, 1,336,683.60 and 859,629.60

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Solution

The fourth proportional to 891,122.40, 1,336,683.60 and 859,629.60 is: 1,289,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,122.40 : 1,336,683.60 = 859,629.60 : x
  2. Step 2: Convert to fraction form
    891,122.40/1,336,683.60 = 859,629.60/x
  3. Step 3: Cross multiply
    891,122.40x = 1,336,683.60 × 859,629.60
  4. Step 4: Simplify right side
    891,122.40x = 1,149,052,788,394.56
  5. Step 5: Solve for x
    x = 1,149,052,788,394.56/891,122.40
  6. Step 6: Final answer
    x = 1,289,444.40

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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.