Finding the Fourth Proportional to 868,032.81, 1,302,039.50 and 306,936.09
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Solution
The fourth proportional to 868,032.81, 1,302,039.50 and 306,936.09 is: 460,400.70
Step by Step Solution
- Step 1: Write the proportion equation
868,032.81 : 1,302,039.50 = 306,936.09 : x - Step 2: Convert to fraction form
868,032.81/1,302,039.50 = 306,936.09/x - Step 3: Cross multiply
868,032.81x = 1,302,039.50 × 306,936.09 - Step 4: Simplify right side
868,032.81x = 399,642,911,620.88 - Step 5: Solve for x
x = 399,642,911,620.88/868,032.81 - Step 6: Final answer
x = 460,400.70
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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.