Finding the Fourth Proportional to 864,137.80, 1,296,206.70 and 490,889.80
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Solution
The fourth proportional to 864,137.80, 1,296,206.70 and 490,889.80 is: 736,334.70
Step by Step Solution
- Step 1: Write the proportion equation
864,137.80 : 1,296,206.70 = 490,889.80 : x - Step 2: Convert to fraction form
864,137.80/1,296,206.70 = 490,889.80/x - Step 3: Cross multiply
864,137.80x = 1,296,206.70 × 490,889.80 - Step 4: Simplify right side
864,137.80x = 636,294,647,721.66 - Step 5: Solve for x
x = 636,294,647,721.66/864,137.80 - Step 6: Final answer
x = 736,334.70
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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.