Finding the Fourth Proportional to 783,900.49, 1,175,967.57 and 278,419.00
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Solution
The fourth proportional to 783,900.49, 1,175,967.57 and 278,419.00 is: 417,669.99
Step by Step Solution
- Step 1: Write the proportion equation
783,900.49 : 1,175,967.57 = 278,419.00 : x - Step 2: Convert to fraction form
783,900.49/1,175,967.57 = 278,419.00/x - Step 3: Cross multiply
783,900.49x = 1,175,967.57 × 278,419.00 - Step 4: Simplify right side
783,900.49x = 327,411,708,991.99 - Step 5: Solve for x
x = 327,411,708,991.99/783,900.49 - Step 6: Final answer
x = 417,669.99
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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.