Finding the Fourth Proportional to 1,211,451.99, 1,671,800.25 and 667,587.60
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Solution
The fourth proportional to 1,211,451.99, 1,671,800.25 and 667,587.60 is: 921,268.96
Step by Step Solution
- Step 1: Write the proportion equation
1,211,451.99 : 1,671,800.25 = 667,587.60 : x - Step 2: Convert to fraction form
1,211,451.99/1,671,800.25 = 667,587.60/x - Step 3: Cross multiply
1,211,451.99x = 1,671,800.25 × 667,587.60 - Step 4: Simplify right side
1,211,451.99x = 1,116,073,116,576.90 - Step 5: Solve for x
x = 1,116,073,116,576.90/1,211,451.99 - Step 6: Final answer
x = 921,268.96
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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.