Finding the Fourth Proportional to 476,717.16, 657,594.86 and 285,619.84
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Solution
The fourth proportional to 476,717.16, 657,594.86 and 285,619.84 is: 393,990.71
Step by Step Solution
- Step 1: Write the proportion equation
476,717.16 : 657,594.86 = 285,619.84 : x - Step 2: Convert to fraction form
476,717.16/657,594.86 = 285,619.84/x - Step 3: Cross multiply
476,717.16x = 657,594.86 × 285,619.84 - Step 4: Simplify right side
476,717.16x = 187,822,135,625.94 - Step 5: Solve for x
x = 187,822,135,625.94/476,717.16 - Step 6: Final answer
x = 393,990.71
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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.