Finding the Fourth Proportional to 1,310,419.23, 1,808,452.97 and 787,289.84
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Solution
The fourth proportional to 1,310,419.23, 1,808,452.97 and 787,289.84 is: 1,086,504.70
Step by Step Solution
- Step 1: Write the proportion equation
1,310,419.23 : 1,808,452.97 = 787,289.84 : x - Step 2: Convert to fraction form
1,310,419.23/1,808,452.97 = 787,289.84/x - Step 3: Cross multiply
1,310,419.23x = 1,808,452.97 × 787,289.84 - Step 4: Simplify right side
1,310,419.23x = 1,423,776,649,398.82 - Step 5: Solve for x
x = 1,423,776,649,398.82/1,310,419.23 - Step 6: Final answer
x = 1,086,504.70
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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.