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Finding the Fourth Proportional to 646,609.44, 892,348.68 and 360,129.60

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Solution

The fourth proportional to 646,609.44, 892,348.68 and 360,129.60 is: 496,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,609.44 : 892,348.68 = 360,129.60 : x
  2. Step 2: Convert to fraction form
    646,609.44/892,348.68 = 360,129.60/x
  3. Step 3: Cross multiply
    646,609.44x = 892,348.68 × 360,129.60
  4. Step 4: Simplify right side
    646,609.44x = 321,361,173,188.93
  5. Step 5: Solve for x
    x = 321,361,173,188.93/646,609.44
  6. Step 6: Final answer
    x = 496,994.25

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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.