Finding the Third Proportional to 399,430.50 and 561,823.75
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Solution
The third proportional to 399,430.50 and 561,823.75 is: 790,239.92
Step by Step Solution
- Step 1: Write the proportion equation
399,430.50 : 561,823.75 = 561,823.75 : x - Step 2: Convert to fraction form
399,430.50/561,823.75 = 561,823.75/x - Step 3: Cross multiply
399,430.50x = 561,823.75 × 561,823.75 - Step 4: Simplify right side
399,430.50x = 315,645,926,064.06 - Step 5: Solve for x
x = 315,645,926,064.06/399,430.50 - Step 6: Final answer
x = 790,239.92
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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.