Finding the Fourth Proportional to 538,194.24, 742,698.72 and 311,860.80
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Solution
The fourth proportional to 538,194.24, 742,698.72 and 311,860.80 is: 430,362.50
Step by Step Solution
- Step 1: Write the proportion equation
538,194.24 : 742,698.72 = 311,860.80 : x - Step 2: Convert to fraction form
538,194.24/742,698.72 = 311,860.80/x - Step 3: Cross multiply
538,194.24x = 742,698.72 × 311,860.80 - Step 4: Simplify right side
538,194.24x = 231,618,616,978.18 - Step 5: Solve for x
x = 231,618,616,978.18/538,194.24 - Step 6: Final answer
x = 430,362.50
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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.