Finding the Fourth Proportional to 977,670.12, 1,347,771.84 and 686,394.92
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Solution
The fourth proportional to 977,670.12, 1,347,771.84 and 686,394.92 is: 946,233.01
Step by Step Solution
- Step 1: Write the proportion equation
977,670.12 : 1,347,771.84 = 686,394.92 : x - Step 2: Convert to fraction form
977,670.12/1,347,771.84 = 686,394.92/x - Step 3: Cross multiply
977,670.12x = 1,347,771.84 × 686,394.92 - Step 4: Simplify right side
977,670.12x = 925,103,744,295.05 - Step 5: Solve for x
x = 925,103,744,295.05/977,670.12 - Step 6: Final answer
x = 946,233.01
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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.