Finding the Fourth Proportional to 538,447.20, 743,053.68 and 296,731.68
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Solution
The fourth proportional to 538,447.20, 743,053.68 and 296,731.68 is: 409,487.81
Step by Step Solution
- Step 1: Write the proportion equation
538,447.20 : 743,053.68 = 296,731.68 : x - Step 2: Convert to fraction form
538,447.20/743,053.68 = 296,731.68/x - Step 3: Cross multiply
538,447.20x = 743,053.68 × 296,731.68 - Step 4: Simplify right side
538,447.20x = 220,487,566,796.58 - Step 5: Solve for x
x = 220,487,566,796.58/538,447.20 - Step 6: Final answer
x = 409,487.81
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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.