Finding the Fourth Proportional to 684,480.26, 944,580.82 and 393,985.68
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Solution
The fourth proportional to 684,480.26, 944,580.82 and 393,985.68 is: 543,699.12
Step by Step Solution
- Step 1: Write the proportion equation
684,480.26 : 944,580.82 = 393,985.68 : x - Step 2: Convert to fraction form
684,480.26/944,580.82 = 393,985.68/x - Step 3: Cross multiply
684,480.26x = 944,580.82 × 393,985.68 - Step 4: Simplify right side
684,480.26x = 372,151,316,682.66 - Step 5: Solve for x
x = 372,151,316,682.66/684,480.26 - Step 6: Final answer
x = 543,699.12
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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.