Finding the Fourth Proportional to 640,382.80, 883,704.36 and 368,492.68
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Solution
The fourth proportional to 640,382.80, 883,704.36 and 368,492.68 is: 508,506.14
Step by Step Solution
- Step 1: Write the proportion equation
640,382.80 : 883,704.36 = 368,492.68 : x - Step 2: Convert to fraction form
640,382.80/883,704.36 = 368,492.68/x - Step 3: Cross multiply
640,382.80x = 883,704.36 × 368,492.68 - Step 4: Simplify right side
640,382.80x = 325,638,587,944.09 - Step 5: Solve for x
x = 325,638,587,944.09/640,382.80 - Step 6: Final answer
x = 508,506.14
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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.