Finding the Fourth Proportional to 990,740.03, 1,367,639.84 and 668,886.12
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Solution
The fourth proportional to 990,740.03, 1,367,639.84 and 668,886.12 is: 923,345.46
Step by Step Solution
- Step 1: Write the proportion equation
990,740.03 : 1,367,639.84 = 668,886.12 : x - Step 2: Convert to fraction form
990,740.03/1,367,639.84 = 668,886.12/x - Step 3: Cross multiply
990,740.03x = 1,367,639.84 × 668,886.12 - Step 4: Simplify right side
990,740.03x = 914,795,307,807.24 - Step 5: Solve for x
x = 914,795,307,807.24/990,740.03 - Step 6: Final answer
x = 923,345.46
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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.