Finding the Fourth Proportional to 783,900.99, 1,175,968.32 and 278,419.50
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Solution
The fourth proportional to 783,900.99, 1,175,968.32 and 278,419.50 is: 417,670.75
Step by Step Solution
- Step 1: Write the proportion equation
783,900.99 : 1,175,968.32 = 278,419.50 : x - Step 2: Convert to fraction form
783,900.99/1,175,968.32 = 278,419.50/x - Step 3: Cross multiply
783,900.99x = 1,175,968.32 × 278,419.50 - Step 4: Simplify right side
783,900.99x = 327,412,511,670.24 - Step 5: Solve for x
x = 327,412,511,670.24/783,900.99 - Step 6: Final answer
x = 417,670.75
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1.5x scale
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.