Home / 698,731.09-1,048,096.86-218,996.11

Finding the Fourth Proportional to 698,731.09, 1,048,096.86 and 218,996.11

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Solution

The fourth proportional to 698,731.09, 1,048,096.86 and 218,996.11 is: 328,494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,731.09 : 1,048,096.86 = 218,996.11 : x
  2. Step 2: Convert to fraction form
    698,731.09/1,048,096.86 = 218,996.11/x
  3. Step 3: Cross multiply
    698,731.09x = 1,048,096.86 × 218,996.11
  4. Step 4: Simplify right side
    698,731.09x = 229,529,135,243.22
  5. Step 5: Solve for x
    x = 229,529,135,243.22/698,731.09
  6. Step 6: Final answer
    x = 328,494.24

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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.