Home / 671,964.96-1,007,440.64-405,662.18

Finding the Fourth Proportional to 671,964.96, 1,007,440.64 and 405,662.18

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Solution

The fourth proportional to 671,964.96, 1,007,440.64 and 405,662.18 is: 608,187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,964.96 : 1,007,440.64 = 405,662.18 : x
  2. Step 2: Convert to fraction form
    671,964.96/1,007,440.64 = 405,662.18/x
  3. Step 3: Cross multiply
    671,964.96x = 1,007,440.64 × 405,662.18
  4. Step 4: Simplify right side
    671,964.96x = 408,680,560,698.71
  5. Step 5: Solve for x
    x = 408,680,560,698.71/671,964.96
  6. Step 6: Final answer
    x = 608,187.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.