Finding the Fourth Proportional to 478,083.09, 716,862.15 and 328,361.07
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Solution
The fourth proportional to 478,083.09, 716,862.15 and 328,361.07 is: 492,361.32
Step by Step Solution
- Step 1: Write the proportion equation
478,083.09 : 716,862.15 = 328,361.07 : x - Step 2: Convert to fraction form
478,083.09/716,862.15 = 328,361.07/x - Step 3: Cross multiply
478,083.09x = 716,862.15 × 328,361.07 - Step 4: Simplify right side
478,083.09x = 235,389,622,616.50 - Step 5: Solve for x
x = 235,389,622,616.50/478,083.09 - Step 6: Final answer
x = 492,361.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.