Finding the Fourth Proportional to 1,243,125.86, 1,715,027.84 and 699,136.88
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Solution
The fourth proportional to 1,243,125.86, 1,715,027.84 and 699,136.88 is: 964,535.65
Step by Step Solution
- Step 1: Write the proportion equation
1,243,125.86 : 1,715,027.84 = 699,136.88 : x - Step 2: Convert to fraction form
1,243,125.86/1,715,027.84 = 699,136.88/x - Step 3: Cross multiply
1,243,125.86x = 1,715,027.84 × 699,136.88 - Step 4: Simplify right side
1,243,125.86x = 1,199,039,213,170.74 - Step 5: Solve for x
x = 1,199,039,213,170.74/1,243,125.86 - Step 6: Final answer
x = 964,535.65
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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.