Finding the Fourth Proportional to 756,617.48, 1,135,102.86 and 257,981.96
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Solution
The fourth proportional to 756,617.48, 1,135,102.86 and 257,981.96 is: 387,033.17
Step by Step Solution
- Step 1: Write the proportion equation
756,617.48 : 1,135,102.86 = 257,981.96 : x - Step 2: Convert to fraction form
756,617.48/1,135,102.86 = 257,981.96/x - Step 3: Cross multiply
756,617.48x = 1,135,102.86 × 257,981.96 - Step 4: Simplify right side
756,617.48x = 292,836,060,624.41 - Step 5: Solve for x
x = 292,836,060,624.41/756,617.48 - Step 6: Final answer
x = 387,033.17
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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.