Finding the Third Proportional to 389,618.50 and 527,979.75
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Solution
The third proportional to 389,618.50 and 527,979.75 is: 715,475.82
Step by Step Solution
- Step 1: Write the proportion equation
389,618.50 : 527,979.75 = 527,979.75 : x - Step 2: Convert to fraction form
389,618.50/527,979.75 = 527,979.75/x - Step 3: Cross multiply
389,618.50x = 527,979.75 × 527,979.75 - Step 4: Simplify right side
389,618.50x = 278,762,616,410.06 - Step 5: Solve for x
x = 278,762,616,410.06/389,618.50 - Step 6: Final answer
x = 715,475.82
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These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.