Home / 831,672.64-1,147,723.20-487,756.64

Finding the Fourth Proportional to 831,672.64, 1,147,723.20 and 487,756.64

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Solution

The fourth proportional to 831,672.64, 1,147,723.20 and 487,756.64 is: 673,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,672.64 : 1,147,723.20 = 487,756.64 : x
  2. Step 2: Convert to fraction form
    831,672.64/1,147,723.20 = 487,756.64/x
  3. Step 3: Cross multiply
    831,672.64x = 1,147,723.20 × 487,756.64
  4. Step 4: Simplify right side
    831,672.64x = 559,809,611,682.05
  5. Step 5: Solve for x
    x = 559,809,611,682.05/831,672.64
  6. Step 6: Final answer
    x = 673,112.94

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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.