Home / 831,960.87-1,148,102.25-449,986.74

Finding the Fourth Proportional to 831,960.87, 1,148,102.25 and 449,986.74

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Solution

The fourth proportional to 831,960.87, 1,148,102.25 and 449,986.74 is: 620,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,960.87 : 1,148,102.25 = 449,986.74 : x
  2. Step 2: Convert to fraction form
    831,960.87/1,148,102.25 = 449,986.74/x
  3. Step 3: Cross multiply
    831,960.87x = 1,148,102.25 × 449,986.74
  4. Step 4: Simplify right side
    831,960.87x = 516,630,788,664.17
  5. Step 5: Solve for x
    x = 516,630,788,664.17/831,960.87
  6. Step 6: Final answer
    x = 620,979.67

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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.