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Finding the Fourth Proportional to 602,193.85, 831,039.20 and 330,245.87

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Solution

The fourth proportional to 602,193.85, 831,039.20 and 330,245.87 is: 455,745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,193.85 : 831,039.20 = 330,245.87 : x
  2. Step 2: Convert to fraction form
    602,193.85/831,039.20 = 330,245.87/x
  3. Step 3: Cross multiply
    602,193.85x = 831,039.20 × 330,245.87
  4. Step 4: Simplify right side
    602,193.85x = 274,447,260,278.52
  5. Step 5: Solve for x
    x = 274,447,260,278.52/602,193.85
  6. Step 6: Final answer
    x = 455,745.71

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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.