Home / 413,741.20-620,784.60-133,344.40

Finding the Fourth Proportional to 413,741.20, 620,784.60 and 133,344.40

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Solution

The fourth proportional to 413,741.20, 620,784.60 and 133,344.40 is: 200,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,741.20 : 620,784.60 = 133,344.40 : x
  2. Step 2: Convert to fraction form
    413,741.20/620,784.60 = 133,344.40/x
  3. Step 3: Cross multiply
    413,741.20x = 620,784.60 × 133,344.40
  4. Step 4: Simplify right side
    413,741.20x = 82,778,150,016.24
  5. Step 5: Solve for x
    x = 82,778,150,016.24/413,741.20
  6. Step 6: Final answer
    x = 200,072.29

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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.