Finding the Fourth Proportional to 1,915,296.04, 2,643,126.42 and 1,055,887.12
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Solution
The fourth proportional to 1,915,296.04, 2,643,126.42 and 1,055,887.12 is: 1,457,134.09
Step by Step Solution
- Step 1: Write the proportion equation
1,915,296.04 : 2,643,126.42 = 1,055,887.12 : x - Step 2: Convert to fraction form
1,915,296.04/2,643,126.42 = 1,055,887.12/x - Step 3: Cross multiply
1,915,296.04x = 2,643,126.42 × 1,055,887.12 - Step 4: Simplify right side
1,915,296.04x = 2,790,843,143,409.71 - Step 5: Solve for x
x = 2,790,843,143,409.71/1,915,296.04 - Step 6: Final answer
x = 1,457,134.09
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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.