Finding the Fourth Proportional to 1,327,145.74, 1,990,712.45 and 416,394.88
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Solution
The fourth proportional to 1,327,145.74, 1,990,712.45 and 416,394.88 is: 624,590.39
Step by Step Solution
- Step 1: Write the proportion equation
1,327,145.74 : 1,990,712.45 = 416,394.88 : x - Step 2: Convert to fraction form
1,327,145.74/1,990,712.45 = 416,394.88/x - Step 3: Cross multiply
1,327,145.74x = 1,990,712.45 × 416,394.88 - Step 4: Simplify right side
1,327,145.74x = 828,922,472,773.24 - Step 5: Solve for x
x = 828,922,472,773.24/1,327,145.74 - Step 6: Final answer
x = 624,590.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.