Finding the Fourth Proportional to 849,421.30, 1,172,201.57 and 467,448.09
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Solution
The fourth proportional to 849,421.30, 1,172,201.57 and 467,448.09 is: 645,078.46
Step by Step Solution
- Step 1: Write the proportion equation
849,421.30 : 1,172,201.57 = 467,448.09 : x - Step 2: Convert to fraction form
849,421.30/1,172,201.57 = 467,448.09/x - Step 3: Cross multiply
849,421.30x = 1,172,201.57 × 467,448.09 - Step 4: Simplify right side
849,421.30x = 547,943,384,991.50 - Step 5: Solve for x
x = 547,943,384,991.50/849,421.30 - Step 6: Final answer
x = 645,078.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.