Finding the Fourth Proportional to 740,643.27, 1,110,791.57 and 208,215.15
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Solution
The fourth proportional to 740,643.27, 1,110,791.57 and 208,215.15 is: 312,273.99
Step by Step Solution
- Step 1: Write the proportion equation
740,643.27 : 1,110,791.57 = 208,215.15 : x - Step 2: Convert to fraction form
740,643.27/1,110,791.57 = 208,215.15/x - Step 3: Cross multiply
740,643.27x = 1,110,791.57 × 208,215.15 - Step 4: Simplify right side
740,643.27x = 231,283,632,325.21 - Step 5: Solve for x
x = 231,283,632,325.21/740,643.27 - Step 6: Final answer
x = 312,273.99
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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.