Home / 470,733.90-649,761.39-300,968.70

Finding the Fourth Proportional to 470,733.90, 649,761.39 and 300,968.70

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Solution

The fourth proportional to 470,733.90, 649,761.39 and 300,968.70 is: 415,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,733.90 : 649,761.39 = 300,968.70 : x
  2. Step 2: Convert to fraction form
    470,733.90/649,761.39 = 300,968.70/x
  3. Step 3: Cross multiply
    470,733.90x = 649,761.39 × 300,968.70
  4. Step 4: Simplify right side
    470,733.90x = 195,557,840,858.49
  5. Step 5: Solve for x
    x = 195,557,840,858.49/470,733.90
  6. Step 6: Final answer
    x = 415,431.82

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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.