Finding the Fourth Proportional to 691,728.87, 1,030,716.93 and 616,269.18
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Solution
The fourth proportional to 691,728.87, 1,030,716.93 and 616,269.18 is: 918,277.53
Step by Step Solution
- Step 1: Write the proportion equation
691,728.87 : 1,030,716.93 = 616,269.18 : x - Step 2: Convert to fraction form
691,728.87/1,030,716.93 = 616,269.18/x - Step 3: Cross multiply
691,728.87x = 1,030,716.93 × 616,269.18 - Step 4: Simplify right side
691,728.87x = 635,199,077,263.22 - Step 5: Solve for x
x = 635,199,077,263.22/691,728.87 - Step 6: Final answer
x = 918,277.53
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.