Finding the Fourth Proportional to 1,125,979.97, 1,688,620.69 and 406,228.10
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Solution
The fourth proportional to 1,125,979.97, 1,688,620.69 and 406,228.10 is: 609,216.14
Step by Step Solution
- Step 1: Write the proportion equation
1,125,979.97 : 1,688,620.69 = 406,228.10 : x - Step 2: Convert to fraction form
1,125,979.97/1,688,620.69 = 406,228.10/x - Step 3: Cross multiply
1,125,979.97x = 1,688,620.69 × 406,228.10 - Step 4: Simplify right side
1,125,979.97x = 685,965,174,519.39 - Step 5: Solve for x
x = 685,965,174,519.39/1,125,979.97 - Step 6: Final answer
x = 609,216.14
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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.