Home / 751,409.46-1,127,136.06-218,918.70

Finding the Fourth Proportional to 751,409.46, 1,127,136.06 and 218,918.70

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Solution

The fourth proportional to 751,409.46, 1,127,136.06 and 218,918.70 is: 328,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,409.46 : 1,127,136.06 = 218,918.70 : x
  2. Step 2: Convert to fraction form
    751,409.46/1,127,136.06 = 218,918.70/x
  3. Step 3: Cross multiply
    751,409.46x = 1,127,136.06 × 218,918.70
  4. Step 4: Simplify right side
    751,409.46x = 246,751,160,978.32
  5. Step 5: Solve for x
    x = 246,751,160,978.32/751,409.46
  6. Step 6: Final answer
    x = 328,384.42

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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.