Home / 470,211.22-649,090.11-317,456.31

Finding the Fourth Proportional to 470,211.22, 649,090.11 and 317,456.31

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Solution

The fourth proportional to 470,211.22, 649,090.11 and 317,456.31 is: 438,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,211.22 : 649,090.11 = 317,456.31 : x
  2. Step 2: Convert to fraction form
    470,211.22/649,090.11 = 317,456.31/x
  3. Step 3: Cross multiply
    470,211.22x = 649,090.11 × 317,456.31
  4. Step 4: Simplify right side
    470,211.22x = 206,057,751,178.09
  5. Step 5: Solve for x
    x = 206,057,751,178.09/470,211.22
  6. Step 6: Final answer
    x = 438,223.81

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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.