Finding the Third Proportional to 393,916.50 and 864,420.75
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Solution
The third proportional to 393,916.50 and 864,420.75 is: 1,896,907.68
Step by Step Solution
- Step 1: Write the proportion equation
393,916.50 : 864,420.75 = 864,420.75 : x - Step 2: Convert to fraction form
393,916.50/864,420.75 = 864,420.75/x - Step 3: Cross multiply
393,916.50x = 864,420.75 × 864,420.75 - Step 4: Simplify right side
393,916.50x = 747,223,233,030.56 - Step 5: Solve for x
x = 747,223,233,030.56/393,916.50 - Step 6: Final answer
x = 1,896,907.68
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.