Home / 789,325.35-1,183,438.85-339,911.43

Finding the Fourth Proportional to 789,325.35, 1,183,438.85 and 339,911.43

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Solution

The fourth proportional to 789,325.35, 1,183,438.85 and 339,911.43 is: 509,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,325.35 : 1,183,438.85 = 339,911.43 : x
  2. Step 2: Convert to fraction form
    789,325.35/1,183,438.85 = 339,911.43/x
  3. Step 3: Cross multiply
    789,325.35x = 1,183,438.85 × 339,911.43
  4. Step 4: Simplify right side
    789,325.35x = 402,264,390,121.50
  5. Step 5: Solve for x
    x = 402,264,390,121.50/789,325.35
  6. Step 6: Final answer
    x = 509,630.65

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1.5x scale

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.