Home / 449,665.24-620,813.33-428,085.93

Finding the Fourth Proportional to 449,665.24, 620,813.33 and 428,085.93

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Solution

The fourth proportional to 449,665.24, 620,813.33 and 428,085.93 is: 591,020.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,665.24 : 620,813.33 = 428,085.93 : x
  2. Step 2: Convert to fraction form
    449,665.24/620,813.33 = 428,085.93/x
  3. Step 3: Cross multiply
    449,665.24x = 620,813.33 × 428,085.93
  4. Step 4: Simplify right side
    449,665.24x = 265,761,451,729.45
  5. Step 5: Solve for x
    x = 265,761,451,729.45/449,665.24
  6. Step 6: Final answer
    x = 591,020.67

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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.