Finding the Fourth Proportional to 718,089.26, 1,076,218.05 and 381,291.26
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Solution
The fourth proportional to 718,089.26, 1,076,218.05 and 381,291.26 is: 571,450.60
Step by Step Solution
- Step 1: Write the proportion equation
718,089.26 : 1,076,218.05 = 381,291.26 : x - Step 2: Convert to fraction form
718,089.26/1,076,218.05 = 381,291.26/x - Step 3: Cross multiply
718,089.26x = 1,076,218.05 × 381,291.26 - Step 4: Simplify right side
718,089.26x = 410,352,536,319.24 - Step 5: Solve for x
x = 410,352,536,319.24/718,089.26 - Step 6: Final answer
x = 571,450.60
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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.