Home / 489,027.60-733,541.40-426,819.60

Finding the Fourth Proportional to 489,027.60, 733,541.40 and 426,819.60

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Solution

The fourth proportional to 489,027.60, 733,541.40 and 426,819.60 is: 640,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,027.60 : 733,541.40 = 426,819.60 : x
  2. Step 2: Convert to fraction form
    489,027.60/733,541.40 = 426,819.60/x
  3. Step 3: Cross multiply
    489,027.60x = 733,541.40 × 426,819.60
  4. Step 4: Simplify right side
    489,027.60x = 313,089,846,931.44
  5. Step 5: Solve for x
    x = 313,089,846,931.44/489,027.60
  6. Step 6: Final answer
    x = 640,229.40

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Similar ratio
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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.