Finding the Fourth Proportional to 452,786.99, 679,203.74 and 115,830.56
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Solution
The fourth proportional to 452,786.99, 679,203.74 and 115,830.56 is: 173,751.78
Step by Step Solution
- Step 1: Write the proportion equation
452,786.99 : 679,203.74 = 115,830.56 : x - Step 2: Convert to fraction form
452,786.99/679,203.74 = 115,830.56/x - Step 3: Cross multiply
452,786.99x = 679,203.74 × 115,830.56 - Step 4: Simplify right side
452,786.99x = 78,672,545,583.12 - Step 5: Solve for x
x = 78,672,545,583.12/452,786.99 - Step 6: Final answer
x = 173,751.78
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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.