Finding the Fourth Proportional to 492,347.94, 678,782.12 and 369,317.31
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Solution
The fourth proportional to 492,347.94, 678,782.12 and 369,317.31 is: 509,164.28
Step by Step Solution
- Step 1: Write the proportion equation
492,347.94 : 678,782.12 = 369,317.31 : x - Step 2: Convert to fraction form
492,347.94/678,782.12 = 369,317.31/x - Step 3: Cross multiply
492,347.94x = 678,782.12 × 369,317.31 - Step 4: Simplify right side
492,347.94x = 250,685,984,787.91 - Step 5: Solve for x
x = 250,685,984,787.91/492,347.94 - Step 6: Final answer
x = 509,164.28
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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.