Finding the Fourth Proportional to 855,402.29, 1,180,413.09 and 487,893.95
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Solution
The fourth proportional to 855,402.29, 1,180,413.09 and 487,893.95 is: 673,269.65
Step by Step Solution
- Step 1: Write the proportion equation
855,402.29 : 1,180,413.09 = 487,893.95 : x - Step 2: Convert to fraction form
855,402.29/1,180,413.09 = 487,893.95/x - Step 3: Cross multiply
855,402.29x = 1,180,413.09 × 487,893.95 - Step 4: Simplify right side
855,402.29x = 575,916,399,209.74 - Step 5: Solve for x
x = 575,916,399,209.74/855,402.29 - Step 6: Final answer
x = 673,269.65
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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.