Finding the Fourth Proportional to 1,367,488.70, 2,051,233.05 and 1,288,756.70
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Solution
The fourth proportional to 1,367,488.70, 2,051,233.05 and 1,288,756.70 is: 1,933,135.05
Step by Step Solution
- Step 1: Write the proportion equation
1,367,488.70 : 2,051,233.05 = 1,288,756.70 : x - Step 2: Convert to fraction form
1,367,488.70/2,051,233.05 = 1,288,756.70/x - Step 3: Cross multiply
1,367,488.70x = 2,051,233.05 × 1,288,756.70 - Step 4: Simplify right side
1,367,488.70x = 2,643,540,336,448.94 - Step 5: Solve for x
x = 2,643,540,336,448.94/1,367,488.70 - Step 6: Final answer
x = 1,933,135.05
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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.