Home / 470,825.34-649,881.27-320,009.82

Finding the Fourth Proportional to 470,825.34, 649,881.27 and 320,009.82

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Solution

The fourth proportional to 470,825.34, 649,881.27 and 320,009.82 is: 441,710.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,825.34 : 649,881.27 = 320,009.82 : x
  2. Step 2: Convert to fraction form
    470,825.34/649,881.27 = 320,009.82/x
  3. Step 3: Cross multiply
    470,825.34x = 649,881.27 × 320,009.82
  4. Step 4: Simplify right side
    470,825.34x = 207,968,388,234.07
  5. Step 5: Solve for x
    x = 207,968,388,234.07/470,825.34
  6. Step 6: Final answer
    x = 441,710.27

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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.