Finding the Fourth Proportional to 513,781.18, 708,549.66 and 441,161.38
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Solution
The fourth proportional to 513,781.18, 708,549.66 and 441,161.38 is: 608,400.54
Step by Step Solution
- Step 1: Write the proportion equation
513,781.18 : 708,549.66 = 441,161.38 : x - Step 2: Convert to fraction form
513,781.18/708,549.66 = 441,161.38/x - Step 3: Cross multiply
513,781.18x = 708,549.66 × 441,161.38 - Step 4: Simplify right side
513,781.18x = 312,584,745,804.13 - Step 5: Solve for x
x = 312,584,745,804.13/513,781.18 - Step 6: Final answer
x = 608,400.54
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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.