Finding the Third Proportional to 399,312 and 872,313.75
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Solution
The third proportional to 399,312 and 872,313.75 is: 1,905,605.84
Step by Step Solution
- Step 1: Write the proportion equation
399,312 : 872,313.75 = 872,313.75 : x - Step 2: Convert to fraction form
399,312/872,313.75 = 872,313.75/x - Step 3: Cross multiply
399,312x = 872,313.75 × 872,313.75 - Step 4: Simplify right side
399,312x = 760,931,278,439.06 - Step 5: Solve for x
x = 760,931,278,439.06/399,312 - Step 6: Final answer
x = 1,905,605.84
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.