Finding the Fourth Proportional to 620,028.16, 927,918.80 and 430,702.08
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Solution
The fourth proportional to 620,028.16, 927,918.80 and 430,702.08 is: 644,578.07
Step by Step Solution
- Step 1: Write the proportion equation
620,028.16 : 927,918.80 = 430,702.08 : x - Step 2: Convert to fraction form
620,028.16/927,918.80 = 430,702.08/x - Step 3: Cross multiply
620,028.16x = 927,918.80 × 430,702.08 - Step 4: Simplify right side
620,028.16x = 399,656,557,231.10 - Step 5: Solve for x
x = 399,656,557,231.10/620,028.16 - Step 6: Final answer
x = 644,578.07
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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.