Finding the Fourth Proportional to 720,307.40, 1,081,139.08 and 365,576
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Solution
The fourth proportional to 720,307.40, 1,081,139.08 and 365,576 is: 548,708.09
Step by Step Solution
- Step 1: Write the proportion equation
720,307.40 : 1,081,139.08 = 365,576 : x - Step 2: Convert to fraction form
720,307.40/1,081,139.08 = 365,576/x - Step 3: Cross multiply
720,307.40x = 1,081,139.08 × 365,576 - Step 4: Simplify right side
720,307.40x = 395,238,500,310.08 - Step 5: Solve for x
x = 395,238,500,310.08/720,307.40 - Step 6: Final answer
x = 548,708.09
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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.