Home / 838,571.40-1,258,375.50-339,939.72

Finding the Fourth Proportional to 838,571.40, 1,258,375.50 and 339,939.72

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Solution

The fourth proportional to 838,571.40, 1,258,375.50 and 339,939.72 is: 510,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,571.40 : 1,258,375.50 = 339,939.72 : x
  2. Step 2: Convert to fraction form
    838,571.40/1,258,375.50 = 339,939.72/x
  3. Step 3: Cross multiply
    838,571.40x = 1,258,375.50 × 339,939.72
  4. Step 4: Simplify right side
    838,571.40x = 427,771,815,124.86
  5. Step 5: Solve for x
    x = 427,771,815,124.86/838,571.40
  6. Step 6: Final answer
    x = 510,119.73

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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.