Finding the Fourth Proportional to 2,136,329.62, 2,948,134.65 and 1,169,460.56
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Solution
The fourth proportional to 2,136,329.62, 2,948,134.65 and 1,169,460.56 is: 1,613,855.45
Step by Step Solution
- Step 1: Write the proportion equation
2,136,329.62 : 2,948,134.65 = 1,169,460.56 : x - Step 2: Convert to fraction form
2,136,329.62/2,948,134.65 = 1,169,460.56/x - Step 3: Cross multiply
2,136,329.62x = 2,948,134.65 × 1,169,460.56 - Step 4: Simplify right side
2,136,329.62x = 3,447,727,198,744.40 - Step 5: Solve for x
x = 3,447,727,198,744.40/2,136,329.62 - Step 6: Final answer
x = 1,613,855.45
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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.