Finding the Fourth Proportional to 938,916.63, 1,295,706.38 and 509,193.81
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Solution
The fourth proportional to 938,916.63, 1,295,706.38 and 509,193.81 is: 702,688.23
Step by Step Solution
- Step 1: Write the proportion equation
938,916.63 : 1,295,706.38 = 509,193.81 : x - Step 2: Convert to fraction form
938,916.63/1,295,706.38 = 509,193.81/x - Step 3: Cross multiply
938,916.63x = 1,295,706.38 × 509,193.81 - Step 4: Simplify right side
938,916.63x = 659,765,665,727.54 - Step 5: Solve for x
x = 659,765,665,727.54/938,916.63 - Step 6: Final answer
x = 702,688.23
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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.