Home / 488,023.88-673,377.21-306,630.72

Finding the Fourth Proportional to 488,023.88, 673,377.21 and 306,630.72

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Solution

The fourth proportional to 488,023.88, 673,377.21 and 306,630.72 is: 423,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,023.88 : 673,377.21 = 306,630.72 : x
  2. Step 2: Convert to fraction form
    488,023.88/673,377.21 = 306,630.72/x
  3. Step 3: Cross multiply
    488,023.88x = 673,377.21 × 306,630.72
  4. Step 4: Simplify right side
    488,023.88x = 206,478,138,733.89
  5. Step 5: Solve for x
    x = 206,478,138,733.89/488,023.88
  6. Step 6: Final answer
    x = 423,090.24

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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.