Finding the Fourth Proportional to 1,415,431.36, 2,121,376.47 and 1,114,724.35
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Solution
The fourth proportional to 1,415,431.36, 2,121,376.47 and 1,114,724.35 is: 1,670,692.11
Step by Step Solution
- Step 1: Write the proportion equation
1,415,431.36 : 2,121,376.47 = 1,114,724.35 : x - Step 2: Convert to fraction form
1,415,431.36/2,121,376.47 = 1,114,724.35/x - Step 3: Cross multiply
1,415,431.36x = 2,121,376.47 × 1,114,724.35 - Step 4: Simplify right side
1,415,431.36x = 2,364,750,006,626.05 - Step 5: Solve for x
x = 2,364,750,006,626.05/1,415,431.36 - Step 6: Final answer
x = 1,670,692.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.