Finding the Fourth Proportional to 1,129,586.91, 1,558,840.74 and 620,299.95
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Solution
The fourth proportional to 1,129,586.91, 1,558,840.74 and 620,299.95 is: 856,019.86
Step by Step Solution
- Step 1: Write the proportion equation
1,129,586.91 : 1,558,840.74 = 620,299.95 : x - Step 2: Convert to fraction form
1,129,586.91/1,558,840.74 = 620,299.95/x - Step 3: Cross multiply
1,129,586.91x = 1,558,840.74 × 620,299.95 - Step 4: Simplify right side
1,129,586.91x = 966,948,833,079.96 - Step 5: Solve for x
x = 966,948,833,079.96/1,129,586.91 - Step 6: Final answer
x = 856,019.86
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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.