Home / 380,881.20-571,467.60-374,903.40

Finding the Fourth Proportional to 380,881.20, 571,467.60 and 374,903.40

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Solution

The fourth proportional to 380,881.20, 571,467.60 and 374,903.40 is: 562,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,881.20 : 571,467.60 = 374,903.40 : x
  2. Step 2: Convert to fraction form
    380,881.20/571,467.60 = 374,903.40/x
  3. Step 3: Cross multiply
    380,881.20x = 571,467.60 × 374,903.40
  4. Step 4: Simplify right side
    380,881.20x = 214,245,146,229.84
  5. Step 5: Solve for x
    x = 214,245,146,229.84/380,881.20
  6. Step 6: Final answer
    x = 562,498.61

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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.