Finding the Fourth Proportional to 538,688.34, 743,395.05 and 296,979.75
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Solution
The fourth proportional to 538,688.34, 743,395.05 and 296,979.75 is: 409,834.89
Step by Step Solution
- Step 1: Write the proportion equation
538,688.34 : 743,395.05 = 296,979.75 : x - Step 2: Convert to fraction form
538,688.34/743,395.05 = 296,979.75/x - Step 3: Cross multiply
538,688.34x = 743,395.05 × 296,979.75 - Step 4: Simplify right side
538,688.34x = 220,773,276,100.24 - Step 5: Solve for x
x = 220,773,276,100.24/538,688.34 - Step 6: Final answer
x = 409,834.89
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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.