Finding the Fourth Proportional to 749,839.68, 1,124,759.52 and 329,119.20
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Solution
The fourth proportional to 749,839.68, 1,124,759.52 and 329,119.20 is: 493,678.80
Step by Step Solution
- Step 1: Write the proportion equation
749,839.68 : 1,124,759.52 = 329,119.20 : x - Step 2: Convert to fraction form
749,839.68/1,124,759.52 = 329,119.20/x - Step 3: Cross multiply
749,839.68x = 1,124,759.52 × 329,119.20 - Step 4: Simplify right side
749,839.68x = 370,179,953,414.78 - Step 5: Solve for x
x = 370,179,953,414.78/749,839.68 - Step 6: Final answer
x = 493,678.80
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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.