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Finding the Fourth Proportional to 646,624.44, 892,369.42 and 360,144.60

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Solution

The fourth proportional to 646,624.44, 892,369.42 and 360,144.60 is: 497,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,624.44 : 892,369.42 = 360,144.60 : x
  2. Step 2: Convert to fraction form
    646,624.44/892,369.42 = 360,144.60/x
  3. Step 3: Cross multiply
    646,624.44x = 892,369.42 × 360,144.60
  4. Step 4: Simplify right side
    646,624.44x = 321,382,027,818.13
  5. Step 5: Solve for x
    x = 321,382,027,818.13/646,624.44
  6. Step 6: Final answer
    x = 497,014.97

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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.