Finding the Fourth Proportional to 752,169.65, 1,128,420.57 and 278,855.00
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Solution
The fourth proportional to 752,169.65, 1,128,420.57 and 278,855.00 is: 418,344.09
Step by Step Solution
- Step 1: Write the proportion equation
752,169.65 : 1,128,420.57 = 278,855.00 : x - Step 2: Convert to fraction form
752,169.65/1,128,420.57 = 278,855.00/x - Step 3: Cross multiply
752,169.65x = 1,128,420.57 × 278,855.00 - Step 4: Simplify right side
752,169.65x = 314,665,722,461.34 - Step 5: Solve for x
x = 314,665,722,461.34/752,169.65 - Step 6: Final answer
x = 418,344.09
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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.