Finding the Fourth Proportional to 756,619.48, 1,135,105.86 and 257,983.96
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Solution
The fourth proportional to 756,619.48, 1,135,105.86 and 257,983.96 is: 387,036.17
Step by Step Solution
- Step 1: Write the proportion equation
756,619.48 : 1,135,105.86 = 257,983.96 : x - Step 2: Convert to fraction form
756,619.48/1,135,105.86 = 257,983.96/x - Step 3: Cross multiply
756,619.48x = 1,135,105.86 × 257,983.96 - Step 4: Simplify right side
756,619.48x = 292,839,104,782.01 - Step 5: Solve for x
x = 292,839,104,782.01/756,619.48 - Step 6: Final answer
x = 387,036.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.