Finding the Fourth Proportional to 1,905,106.14, 2,858,157.17 and 1,105,619.14
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Solution
The fourth proportional to 1,905,106.14, 2,858,157.17 and 1,105,619.14 is: 1,658,717.70
Step by Step Solution
- Step 1: Write the proportion equation
1,905,106.14 : 2,858,157.17 = 1,105,619.14 : x - Step 2: Convert to fraction form
1,905,106.14/2,858,157.17 = 1,105,619.14/x - Step 3: Cross multiply
1,905,106.14x = 2,858,157.17 × 1,105,619.14 - Step 4: Simplify right side
1,905,106.14x = 3,160,033,272,280.23 - Step 5: Solve for x
x = 3,160,033,272,280.23/1,905,106.14 - Step 6: Final answer
x = 1,658,717.70
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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.