Finding the Fourth Proportional to 1,405,068.17, 1,938,998.79 and 760,487.99
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Solution
The fourth proportional to 1,405,068.17, 1,938,998.79 and 760,487.99 is: 1,049,475.98
Step by Step Solution
- Step 1: Write the proportion equation
1,405,068.17 : 1,938,998.79 = 760,487.99 : x - Step 2: Convert to fraction form
1,405,068.17/1,938,998.79 = 760,487.99/x - Step 3: Cross multiply
1,405,068.17x = 1,938,998.79 × 760,487.99 - Step 4: Simplify right side
1,405,068.17x = 1,474,585,282,724.54 - Step 5: Solve for x
x = 1,474,585,282,724.54/1,405,068.17 - Step 6: Final answer
x = 1,049,475.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.