Finding the Fourth Proportional to 1,215,191.58, 1,821,201.93 and 879,363.42
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Solution
The fourth proportional to 1,215,191.58, 1,821,201.93 and 879,363.42 is: 1,317,897.84
Step by Step Solution
- Step 1: Write the proportion equation
1,215,191.58 : 1,821,201.93 = 879,363.42 : x - Step 2: Convert to fraction form
1,215,191.58/1,821,201.93 = 879,363.42/x - Step 3: Cross multiply
1,215,191.58x = 1,821,201.93 × 879,363.42 - Step 4: Simplify right side
1,215,191.58x = 1,601,498,357,675.40 - Step 5: Solve for x
x = 1,601,498,357,675.40/1,215,191.58 - Step 6: Final answer
x = 1,317,897.84
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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.