Finding the Fourth Proportional to 486,948.11, 671,975.49 and 272,089.94
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Solution
The fourth proportional to 486,948.11, 671,975.49 and 272,089.94 is: 375,476.91
Step by Step Solution
- Step 1: Write the proportion equation
486,948.11 : 671,975.49 = 272,089.94 : x - Step 2: Convert to fraction form
486,948.11/671,975.49 = 272,089.94/x - Step 3: Cross multiply
486,948.11x = 671,975.49 × 272,089.94 - Step 4: Simplify right side
486,948.11x = 182,837,768,416.03 - Step 5: Solve for x
x = 182,837,768,416.03/486,948.11 - Step 6: Final answer
x = 375,476.91
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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.