Finding the Fourth Proportional to 1,355,409.63, 1,870,489.92 and 743,593.65
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Solution
The fourth proportional to 1,355,409.63, 1,870,489.92 and 743,593.65 is: 1,026,172.75
Step by Step Solution
- Step 1: Write the proportion equation
1,355,409.63 : 1,870,489.92 = 743,593.65 : x - Step 2: Convert to fraction form
1,355,409.63/1,870,489.92 = 743,593.65/x - Step 3: Cross multiply
1,355,409.63x = 1,870,489.92 × 743,593.65 - Step 4: Simplify right side
1,355,409.63x = 1,390,884,426,901.01 - Step 5: Solve for x
x = 1,390,884,426,901.01/1,355,409.63 - Step 6: Final answer
x = 1,026,172.75
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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.