Finding the Fourth Proportional to 990,724.07, 1,367,617.74 and 668,870.12
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Solution
The fourth proportional to 990,724.07, 1,367,617.74 and 668,870.12 is: 923,323.32
Step by Step Solution
- Step 1: Write the proportion equation
990,724.07 : 1,367,617.74 = 668,870.12 : x - Step 2: Convert to fraction form
990,724.07/1,367,617.74 = 668,870.12/x - Step 3: Cross multiply
990,724.07x = 1,367,617.74 × 668,870.12 - Step 4: Simplify right side
990,724.07x = 914,758,641,867.93 - Step 5: Solve for x
x = 914,758,641,867.93/990,724.07 - Step 6: Final answer
x = 923,323.32
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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.