Finding the Fourth Proportional to 407,787.36, 610,990.80 and 249,685.68
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Solution
The fourth proportional to 407,787.36, 610,990.80 and 249,685.68 is: 374,105.89
Step by Step Solution
- Step 1: Write the proportion equation
407,787.36 : 610,990.80 = 249,685.68 : x - Step 2: Convert to fraction form
407,787.36/610,990.80 = 249,685.68/x - Step 3: Cross multiply
407,787.36x = 610,990.80 × 249,685.68 - Step 4: Simplify right side
407,787.36x = 152,555,653,371.74 - Step 5: Solve for x
x = 152,555,653,371.74/407,787.36 - Step 6: Final answer
x = 374,105.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.