Finding the Third Proportional to 399,439.75 and 561,838.75
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Solution
The third proportional to 399,439.75 and 561,838.75 is: 790,263.82
Step by Step Solution
- Step 1: Write the proportion equation
399,439.75 : 561,838.75 = 561,838.75 : x - Step 2: Convert to fraction form
399,439.75/561,838.75 = 561,838.75/x - Step 3: Cross multiply
399,439.75x = 561,838.75 × 561,838.75 - Step 4: Simplify right side
399,439.75x = 315,662,781,001.56 - Step 5: Solve for x
x = 315,662,781,001.56/399,439.75 - Step 6: Final answer
x = 790,263.82
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These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.