Finding the Fourth Proportional to 636,344.19, 878,132.49 and 349,862.07
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Solution
The fourth proportional to 636,344.19, 878,132.49 and 349,862.07 is: 482,797.29
Step by Step Solution
- Step 1: Write the proportion equation
636,344.19 : 878,132.49 = 349,862.07 : x - Step 2: Convert to fraction form
636,344.19/878,132.49 = 349,862.07/x - Step 3: Cross multiply
636,344.19x = 878,132.49 × 349,862.07 - Step 4: Simplify right side
636,344.19x = 307,225,250,685.65 - Step 5: Solve for x
x = 307,225,250,685.65/636,344.19 - Step 6: Final answer
x = 482,797.29
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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.