Finding the Fourth Proportional to 1,388,346.76, 2,081,994.54 and 756,916.84
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Solution
The fourth proportional to 1,388,346.76, 2,081,994.54 and 756,916.84 is: 1,135,088.71
Step by Step Solution
- Step 1: Write the proportion equation
1,388,346.76 : 2,081,994.54 = 756,916.84 : x - Step 2: Convert to fraction form
1,388,346.76/2,081,994.54 = 756,916.84/x - Step 3: Cross multiply
1,388,346.76x = 2,081,994.54 × 756,916.84 - Step 4: Simplify right side
1,388,346.76x = 1,575,896,728,114.05 - Step 5: Solve for x
x = 1,575,896,728,114.05/1,388,346.76 - Step 6: Final answer
x = 1,135,088.71
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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.