Finding the Fourth Proportional to 611,223.44, 843,448.28 and 339,278.09
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Solution
The fourth proportional to 611,223.44, 843,448.28 and 339,278.09 is: 468,181.52
Step by Step Solution
- Step 1: Write the proportion equation
611,223.44 : 843,448.28 = 339,278.09 : x - Step 2: Convert to fraction form
611,223.44/843,448.28 = 339,278.09/x - Step 3: Cross multiply
611,223.44x = 843,448.28 × 339,278.09 - Step 4: Simplify right side
611,223.44x = 286,163,515,538.55 - Step 5: Solve for x
x = 286,163,515,538.55/611,223.44 - Step 6: Final answer
x = 468,181.52
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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.