Finding the Fourth Proportional to 849,421.43, 1,172,201.75 and 467,448.21
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Solution
The fourth proportional to 849,421.43, 1,172,201.75 and 467,448.21 is: 645,078.63
Step by Step Solution
- Step 1: Write the proportion equation
849,421.43 : 1,172,201.75 = 467,448.21 : x - Step 2: Convert to fraction form
849,421.43/1,172,201.75 = 467,448.21/x - Step 3: Cross multiply
849,421.43x = 1,172,201.75 × 467,448.21 - Step 4: Simplify right side
849,421.43x = 547,943,607,459.13 - Step 5: Solve for x
x = 547,943,607,459.13/849,421.43 - Step 6: Final answer
x = 645,078.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.