Finding the Fourth Proportional to 538,331.76, 742,894.14 and 296,608.71
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Solution
The fourth proportional to 538,331.76, 742,894.14 and 296,608.71 is: 409,317.99
Step by Step Solution
- Step 1: Write the proportion equation
538,331.76 : 742,894.14 = 296,608.71 : x - Step 2: Convert to fraction form
538,331.76/742,894.14 = 296,608.71/x - Step 3: Cross multiply
538,331.76x = 742,894.14 × 296,608.71 - Step 4: Simplify right side
538,331.76x = 220,348,872,531.96 - Step 5: Solve for x
x = 220,348,872,531.96/538,331.76 - Step 6: Final answer
x = 409,317.99
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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.