Home / 947,912.76-1,421,868.87-379,549.80

Finding the Fourth Proportional to 947,912.76, 1,421,868.87 and 379,549.80

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Solution

The fourth proportional to 947,912.76, 1,421,868.87 and 379,549.80 is: 569,324.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,912.76 : 1,421,868.87 = 379,549.80 : x
  2. Step 2: Convert to fraction form
    947,912.76/1,421,868.87 = 379,549.80/x
  3. Step 3: Cross multiply
    947,912.76x = 1,421,868.87 × 379,549.80
  4. Step 4: Simplify right side
    947,912.76x = 539,670,045,234.73
  5. Step 5: Solve for x
    x = 539,670,045,234.73/947,912.76
  6. Step 6: Final answer
    x = 569,324.59

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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.