Finding the Fourth Proportional to 1,216,368.62, 1,678,220.28 and 848,835.98
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Solution
The fourth proportional to 1,216,368.62, 1,678,220.28 and 848,835.98 is: 1,171,136.56
Step by Step Solution
- Step 1: Write the proportion equation
1,216,368.62 : 1,678,220.28 = 848,835.98 : x - Step 2: Convert to fraction form
1,216,368.62/1,678,220.28 = 848,835.98/x - Step 3: Cross multiply
1,216,368.62x = 1,678,220.28 × 848,835.98 - Step 4: Simplify right side
1,216,368.62x = 1,424,533,756,029.67 - Step 5: Solve for x
x = 1,424,533,756,029.67/1,216,368.62 - Step 6: Final answer
x = 1,171,136.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.