Finding the Fourth Proportional to 886,986.60, 1,330,479.90 and 818,557.80
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Solution
The fourth proportional to 886,986.60, 1,330,479.90 and 818,557.80 is: 1,227,836.70
Step by Step Solution
- Step 1: Write the proportion equation
886,986.60 : 1,330,479.90 = 818,557.80 : x - Step 2: Convert to fraction form
886,986.60/1,330,479.90 = 818,557.80/x - Step 3: Cross multiply
886,986.60x = 1,330,479.90 × 818,557.80 - Step 4: Simplify right side
886,986.60x = 1,089,074,699,888.22 - Step 5: Solve for x
x = 1,089,074,699,888.22/886,986.60 - Step 6: Final answer
x = 1,227,836.70
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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.