Finding the Fourth Proportional to 1,804,965.12, 2,707,447.68 and 919,123.20
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Solution
The fourth proportional to 1,804,965.12, 2,707,447.68 and 919,123.20 is: 1,378,684.80
Step by Step Solution
- Step 1: Write the proportion equation
1,804,965.12 : 2,707,447.68 = 919,123.20 : x - Step 2: Convert to fraction form
1,804,965.12/2,707,447.68 = 919,123.20/x - Step 3: Cross multiply
1,804,965.12x = 2,707,447.68 × 919,123.20 - Step 4: Simplify right side
1,804,965.12x = 2,488,477,975,474.18 - Step 5: Solve for x
x = 2,488,477,975,474.18/1,804,965.12 - Step 6: Final answer
x = 1,378,684.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.