Finding the Fourth Proportional to 485,991.09, 729,312.05 and 201,681.90
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Solution
The fourth proportional to 485,991.09, 729,312.05 and 201,681.90 is: 302,657.90
Step by Step Solution
- Step 1: Write the proportion equation
485,991.09 : 729,312.05 = 201,681.90 : x - Step 2: Convert to fraction form
485,991.09/729,312.05 = 201,681.90/x - Step 3: Cross multiply
485,991.09x = 729,312.05 × 201,681.90 - Step 4: Simplify right side
485,991.09x = 147,089,040,441.10 - Step 5: Solve for x
x = 147,089,040,441.10/485,991.09 - Step 6: Final answer
x = 302,657.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.