Home / 470,828.34-649,885.41-320,012.82

Finding the Fourth Proportional to 470,828.34, 649,885.41 and 320,012.82

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Solution

The fourth proportional to 470,828.34, 649,885.41 and 320,012.82 is: 441,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,828.34 : 649,885.41 = 320,012.82 : x
  2. Step 2: Convert to fraction form
    470,828.34/649,885.41 = 320,012.82/x
  3. Step 3: Cross multiply
    470,828.34x = 649,885.41 × 320,012.82
  4. Step 4: Simplify right side
    470,828.34x = 207,971,662,730.96
  5. Step 5: Solve for x
    x = 207,971,662,730.96/470,828.34
  6. Step 6: Final answer
    x = 441,714.41

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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.