Finding the Fourth Proportional to 1,327,143.99, 1,990,709.83 and 416,393.13
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Solution
The fourth proportional to 1,327,143.99, 1,990,709.83 and 416,393.13 is: 624,587.76
Step by Step Solution
- Step 1: Write the proportion equation
1,327,143.99 : 1,990,709.83 = 416,393.13 : x - Step 2: Convert to fraction form
1,327,143.99/1,990,709.83 = 416,393.13/x - Step 3: Cross multiply
1,327,143.99x = 1,990,709.83 × 416,393.13 - Step 4: Simplify right side
1,327,143.99x = 828,917,895,994.49 - Step 5: Solve for x
x = 828,917,895,994.49/1,327,143.99 - Step 6: Final answer
x = 624,587.76
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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.