Finding the Fourth Proportional to 1,086,611.84, 1,630,990.48 and 815,798.08
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Solution
The fourth proportional to 1,086,611.84, 1,630,990.48 and 815,798.08 is: 1,224,502.49
Step by Step Solution
- Step 1: Write the proportion equation
1,086,611.84 : 1,630,990.48 = 815,798.08 : x - Step 2: Convert to fraction form
1,086,611.84/1,630,990.48 = 815,798.08/x - Step 3: Cross multiply
1,086,611.84x = 1,630,990.48 × 815,798.08 - Step 4: Simplify right side
1,086,611.84x = 1,330,558,902,082.28 - Step 5: Solve for x
x = 1,330,558,902,082.28/1,086,611.84 - Step 6: Final answer
x = 1,224,502.49
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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.