Home / 413,546.10-620,405.55-133,091.70

Finding the Fourth Proportional to 413,546.10, 620,405.55 and 133,091.70

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Solution

The fourth proportional to 413,546.10, 620,405.55 and 133,091.70 is: 199,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,546.10 : 620,405.55 = 133,091.70 : x
  2. Step 2: Convert to fraction form
    413,546.10/620,405.55 = 133,091.70/x
  3. Step 3: Cross multiply
    413,546.10x = 620,405.55 × 133,091.70
  4. Step 4: Simplify right side
    413,546.10x = 82,570,829,338.94
  5. Step 5: Solve for x
    x = 82,570,829,338.94/413,546.10
  6. Step 6: Final answer
    x = 199,665.36

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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.