Home / 449,299.38-620,010.03-245,310.98

Finding the Fourth Proportional to 449,299.38, 620,010.03 and 245,310.98

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Solution

The fourth proportional to 449,299.38, 620,010.03 and 245,310.98 is: 338,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,299.38 : 620,010.03 = 245,310.98 : x
  2. Step 2: Convert to fraction form
    449,299.38/620,010.03 = 245,310.98/x
  3. Step 3: Cross multiply
    449,299.38x = 620,010.03 × 245,310.98
  4. Step 4: Simplify right side
    449,299.38x = 152,095,263,742.52
  5. Step 5: Solve for x
    x = 152,095,263,742.52/449,299.38
  6. Step 6: Final answer
    x = 338,516.53

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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.