Finding the Fourth Proportional to 1,189,130.19, 1,640,313.38 and 758,925.42
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Solution
The fourth proportional to 1,189,130.19, 1,640,313.38 and 758,925.42 is: 1,046,879.08
Step by Step Solution
- Step 1: Write the proportion equation
1,189,130.19 : 1,640,313.38 = 758,925.42 : x - Step 2: Convert to fraction form
1,189,130.19/1,640,313.38 = 758,925.42/x - Step 3: Cross multiply
1,189,130.19x = 1,640,313.38 × 758,925.42 - Step 4: Simplify right side
1,189,130.19x = 1,244,875,517,053.49 - Step 5: Solve for x
x = 1,244,875,517,053.49/1,189,130.19 - Step 6: Final answer
x = 1,046,879.08
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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.