Finding the Fourth Proportional to 916,712.26, 1,265,043.88 and 508,790.18
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Solution
The fourth proportional to 916,712.26, 1,265,043.88 and 508,790.18 is: 702,119.88
Step by Step Solution
- Step 1: Write the proportion equation
916,712.26 : 1,265,043.88 = 508,790.18 : x - Step 2: Convert to fraction form
916,712.26/1,265,043.88 = 508,790.18/x - Step 3: Cross multiply
916,712.26x = 1,265,043.88 × 508,790.18 - Step 4: Simplify right side
916,712.26x = 643,641,903,413.10 - Step 5: Solve for x
x = 643,641,903,413.10/916,712.26 - Step 6: Final answer
x = 702,119.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.