Finding the Fourth Proportional to 452,387.36, 678,604.39 and 115,430.96
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Solution
The fourth proportional to 452,387.36, 678,604.39 and 115,430.96 is: 173,152.40
Step by Step Solution
- Step 1: Write the proportion equation
452,387.36 : 678,604.39 = 115,430.96 : x - Step 2: Convert to fraction form
452,387.36/678,604.39 = 115,430.96/x - Step 3: Cross multiply
452,387.36x = 678,604.39 × 115,430.96 - Step 4: Simplify right side
452,387.36x = 78,331,956,197.91 - Step 5: Solve for x
x = 78,331,956,197.91/452,387.36 - Step 6: Final answer
x = 173,152.40
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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.