Home / 407,795.12-562,561.96-287,003.44

Finding the Fourth Proportional to 407,795.12, 562,561.96 and 287,003.44

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Solution

The fourth proportional to 407,795.12, 562,561.96 and 287,003.44 is: 395,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,795.12 : 562,561.96 = 287,003.44 : x
  2. Step 2: Convert to fraction form
    407,795.12/562,561.96 = 287,003.44/x
  3. Step 3: Cross multiply
    407,795.12x = 562,561.96 × 287,003.44
  4. Step 4: Simplify right side
    407,795.12x = 161,457,217,733.14
  5. Step 5: Solve for x
    x = 161,457,217,733.14/407,795.12
  6. Step 6: Final answer
    x = 395,927.29

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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.