Finding the Fourth Proportional to 3,876,211.60, 5,814,849.34 and 1,316,739.53
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Solution
The fourth proportional to 3,876,211.60, 5,814,849.34 and 1,316,739.53 is: 1,975,289.99
Step by Step Solution
- Step 1: Write the proportion equation
3,876,211.60 : 5,814,849.34 = 1,316,739.53 : x - Step 2: Convert to fraction form
3,876,211.60/5,814,849.34 = 1,316,739.53/x - Step 3: Cross multiply
3,876,211.60x = 5,814,849.34 × 1,316,739.53 - Step 4: Simplify right side
3,876,211.60x = 7,656,641,986,972.41 - Step 5: Solve for x
x = 7,656,641,986,972.41/3,876,211.60 - Step 6: Final answer
x = 1,975,289.99
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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.