Finding the Fourth Proportional to 752,456.14, 1,128,681.16 and 272,571.68
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Solution
The fourth proportional to 752,456.14, 1,128,681.16 and 272,571.68 is: 408,856.42
Step by Step Solution
- Step 1: Write the proportion equation
752,456.14 : 1,128,681.16 = 272,571.68 : x - Step 2: Convert to fraction form
752,456.14/1,128,681.16 = 272,571.68/x - Step 3: Cross multiply
752,456.14x = 1,128,681.16 × 272,571.68 - Step 4: Simplify right side
752,456.14x = 307,646,519,965.55 - Step 5: Solve for x
x = 307,646,519,965.55/752,456.14 - Step 6: Final answer
x = 408,856.42
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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.