Finding the Fourth Proportional to 577,079.80, 865,619.70 and 328,247.80
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Solution
The fourth proportional to 577,079.80, 865,619.70 and 328,247.80 is: 492,371.70
Step by Step Solution
- Step 1: Write the proportion equation
577,079.80 : 865,619.70 = 328,247.80 : x - Step 2: Convert to fraction form
577,079.80/865,619.70 = 328,247.80/x - Step 3: Cross multiply
577,079.80x = 865,619.70 × 328,247.80 - Step 4: Simplify right side
577,079.80x = 284,137,762,161.66 - Step 5: Solve for x
x = 284,137,762,161.66/577,079.80 - Step 6: Final answer
x = 492,371.70
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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.