Finding the Fourth Proportional to 486,476.56, 671,160.36 and 285,233.68
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Solution
The fourth proportional to 486,476.56, 671,160.36 and 285,233.68 is: 393,518.53
Step by Step Solution
- Step 1: Write the proportion equation
486,476.56 : 671,160.36 = 285,233.68 : x - Step 2: Convert to fraction form
486,476.56/671,160.36 = 285,233.68/x - Step 3: Cross multiply
486,476.56x = 671,160.36 × 285,233.68 - Step 4: Simplify right side
486,476.56x = 191,437,539,352.93 - Step 5: Solve for x
x = 191,437,539,352.93/486,476.56 - Step 6: Final answer
x = 393,518.53
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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.