Finding the Fourth Proportional to 458,912.97, 631,053.87 and 398,377.80
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Solution
The fourth proportional to 458,912.97, 631,053.87 and 398,377.80 is: 547,811.61
Step by Step Solution
- Step 1: Write the proportion equation
458,912.97 : 631,053.87 = 398,377.80 : x - Step 2: Convert to fraction form
458,912.97/631,053.87 = 398,377.80/x - Step 3: Cross multiply
458,912.97x = 631,053.87 × 398,377.80 - Step 4: Simplify right side
458,912.97x = 251,397,852,412.09 - Step 5: Solve for x
x = 251,397,852,412.09/458,912.97 - Step 6: Final answer
x = 547,811.61
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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.