Finding the Fourth Proportional to 557,690.99, 769,611.68 and 316,019.63
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Solution
The fourth proportional to 557,690.99, 769,611.68 and 316,019.63 is: 436,106.01
Step by Step Solution
- Step 1: Write the proportion equation
557,690.99 : 769,611.68 = 316,019.63 : x - Step 2: Convert to fraction form
557,690.99/769,611.68 = 316,019.63/x - Step 3: Cross multiply
557,690.99x = 769,611.68 × 316,019.63 - Step 4: Simplify right side
557,690.99x = 243,212,392,929.12 - Step 5: Solve for x
x = 243,212,392,929.12/557,690.99 - Step 6: Final answer
x = 436,106.01
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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.