Finding the Fourth Proportional to 1,690,679.30, 2,331,777.00 and 1,486,293.21
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Solution
The fourth proportional to 1,690,679.30, 2,331,777.00 and 1,486,293.21 is: 2,049,888.67
Step by Step Solution
- Step 1: Write the proportion equation
1,690,679.30 : 2,331,777.00 = 1,486,293.21 : x - Step 2: Convert to fraction form
1,690,679.30/2,331,777.00 = 1,486,293.21/x - Step 3: Cross multiply
1,690,679.30x = 2,331,777.00 × 1,486,293.21 - Step 4: Simplify right side
1,690,679.30x = 3,465,704,326,049.90 - Step 5: Solve for x
x = 3,465,704,326,049.90/1,690,679.30 - Step 6: Final answer
x = 2,049,888.67
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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.