Finding the Fourth Proportional to 1,295,172.24, 1,787,207.40 and 722,158.80
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Solution
The fourth proportional to 1,295,172.24, 1,787,207.40 and 722,158.80 is: 996,506.50
Step by Step Solution
- Step 1: Write the proportion equation
1,295,172.24 : 1,787,207.40 = 722,158.80 : x - Step 2: Convert to fraction form
1,295,172.24/1,787,207.40 = 722,158.80/x - Step 3: Cross multiply
1,295,172.24x = 1,787,207.40 × 722,158.80 - Step 4: Simplify right side
1,295,172.24x = 1,290,647,551,335.12 - Step 5: Solve for x
x = 1,290,647,551,335.12/1,295,172.24 - Step 6: Final answer
x = 996,506.50
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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.