Finding the Fourth Proportional to 636,331.41, 878,135.18 and 349,850.61
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Solution
The fourth proportional to 636,331.41, 878,135.18 and 349,850.61 is: 482,792.65
Step by Step Solution
- Step 1: Write the proportion equation
636,331.41 : 878,135.18 = 349,850.61 : x - Step 2: Convert to fraction form
636,331.41/878,135.18 = 349,850.61/x - Step 3: Cross multiply
636,331.41x = 878,135.18 × 349,850.61 - Step 4: Simplify right side
636,331.41x = 307,216,126,636.21 - Step 5: Solve for x
x = 307,216,126,636.21/636,331.41 - Step 6: Final answer
x = 482,792.65
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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.