Finding the Fourth Proportional to 1,312,651.95, 1,811,448.96 and 731,868.18
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Solution
The fourth proportional to 1,312,651.95, 1,811,448.96 and 731,868.18 is: 1,009,972.11
Step by Step Solution
- Step 1: Write the proportion equation
1,312,651.95 : 1,811,448.96 = 731,868.18 : x - Step 2: Convert to fraction form
1,312,651.95/1,811,448.96 = 731,868.18/x - Step 3: Cross multiply
1,312,651.95x = 1,811,448.96 × 731,868.18 - Step 4: Simplify right side
1,312,651.95x = 1,325,741,853,518.09 - Step 5: Solve for x
x = 1,325,741,853,518.09/1,312,651.95 - Step 6: Final answer
x = 1,009,972.11
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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.