Home / 488,819.20-673,657.28-381,219.20

Finding the Fourth Proportional to 488,819.20, 673,657.28 and 381,219.20

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Solution

The fourth proportional to 488,819.20, 673,657.28 and 381,219.20 is: 525,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,819.20 : 673,657.28 = 381,219.20 : x
  2. Step 2: Convert to fraction form
    488,819.20/673,657.28 = 381,219.20/x
  3. Step 3: Cross multiply
    488,819.20x = 673,657.28 × 381,219.20
  4. Step 4: Simplify right side
    488,819.20x = 256,811,089,355.78
  5. Step 5: Solve for x
    x = 256,811,089,355.78/488,819.20
  6. Step 6: Final answer
    x = 525,370.30

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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.