Finding the Fourth Proportional to 1,116,057.90, 1,673,685.44 and 386,382.99
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Solution
The fourth proportional to 1,116,057.90, 1,673,685.44 and 386,382.99 is: 579,435.52
Step by Step Solution
- Step 1: Write the proportion equation
1,116,057.90 : 1,673,685.44 = 386,382.99 : x - Step 2: Convert to fraction form
1,116,057.90/1,673,685.44 = 386,382.99/x - Step 3: Cross multiply
1,116,057.90x = 1,673,685.44 × 386,382.99 - Step 4: Simplify right side
1,116,057.90x = 646,683,584,626.67 - Step 5: Solve for x
x = 646,683,584,626.67/1,116,057.90 - Step 6: Final answer
x = 579,435.52
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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.