Home / 831,356.57-1,147,271.56-449,383.35

Finding the Fourth Proportional to 831,356.57, 1,147,271.56 and 449,383.35

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Solution

The fourth proportional to 831,356.57, 1,147,271.56 and 449,383.35 is: 620,148.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,356.57 : 1,147,271.56 = 449,383.35 : x
  2. Step 2: Convert to fraction form
    831,356.57/1,147,271.56 = 449,383.35/x
  3. Step 3: Cross multiply
    831,356.57x = 1,147,271.56 × 449,383.35
  4. Step 4: Simplify right side
    831,356.57x = 515,564,734,745.61
  5. Step 5: Solve for x
    x = 515,564,734,745.61/831,356.57
  6. Step 6: Final answer
    x = 620,148.75

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1.5x scale

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.