Finding the Fourth Proportional to 640,043.56, 883,367.94 and 371,927.08
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Solution
The fourth proportional to 640,043.56, 883,367.94 and 371,927.08 is: 513,322.03
Step by Step Solution
- Step 1: Write the proportion equation
640,043.56 : 883,367.94 = 371,927.08 : x - Step 2: Convert to fraction form
640,043.56/883,367.94 = 371,927.08/x - Step 3: Cross multiply
640,043.56x = 883,367.94 × 371,927.08 - Step 4: Simplify right side
640,043.56x = 328,548,458,489.82 - Step 5: Solve for x
x = 328,548,458,489.82/640,043.56 - Step 6: Final answer
x = 513,322.03
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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.