Finding the Third Proportional to 348,439.50 and 490,695.75
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Solution
The third proportional to 348,439.50 and 490,695.75 is: 691,030.49
Step by Step Solution
- Step 1: Write the proportion equation
348,439.50 : 490,695.75 = 490,695.75 : x - Step 2: Convert to fraction form
348,439.50/490,695.75 = 490,695.75/x - Step 3: Cross multiply
348,439.50x = 490,695.75 × 490,695.75 - Step 4: Simplify right side
348,439.50x = 240,782,319,068.06 - Step 5: Solve for x
x = 240,782,319,068.06/348,439.50 - Step 6: Final answer
x = 691,030.49
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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.