Home / 461,346.21-636,919.34-300,120.57

Finding the Fourth Proportional to 461,346.21, 636,919.34 and 300,120.57

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Solution

The fourth proportional to 461,346.21, 636,919.34 and 300,120.57 is: 414,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,346.21 : 636,919.34 = 300,120.57 : x
  2. Step 2: Convert to fraction form
    461,346.21/636,919.34 = 300,120.57/x
  3. Step 3: Cross multiply
    461,346.21x = 636,919.34 × 300,120.57
  4. Step 4: Simplify right side
    461,346.21x = 191,152,593,864.22
  5. Step 5: Solve for x
    x = 191,152,593,864.22/461,346.21
  6. Step 6: Final answer
    x = 414,336.54

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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.