Finding the Fourth Proportional to 2,115,588.96, 2,918,791.80 and 1,352,082.96
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Solution
The fourth proportional to 2,115,588.96, 2,918,791.80 and 1,352,082.96 is: 1,865,413.71
Step by Step Solution
- Step 1: Write the proportion equation
2,115,588.96 : 2,918,791.80 = 1,352,082.96 : x - Step 2: Convert to fraction form
2,115,588.96/2,918,791.80 = 1,352,082.96/x - Step 3: Cross multiply
2,115,588.96x = 2,918,791.80 × 1,352,082.96 - Step 4: Simplify right side
2,115,588.96x = 3,946,448,656,567.73 - Step 5: Solve for x
x = 3,946,448,656,567.73/2,115,588.96 - Step 6: Final answer
x = 1,865,413.71
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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.