Finding the Fourth Proportional to 538,430.40, 742,759.20 and 368,827.20
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Solution
The fourth proportional to 538,430.40, 742,759.20 and 368,827.20 is: 508,793.33
Step by Step Solution
- Step 1: Write the proportion equation
538,430.40 : 742,759.20 = 368,827.20 : x - Step 2: Convert to fraction form
538,430.40/742,759.20 = 368,827.20/x - Step 3: Cross multiply
538,430.40x = 742,759.20 × 368,827.20 - Step 4: Simplify right side
538,430.40x = 273,949,796,010.24 - Step 5: Solve for x
x = 273,949,796,010.24/538,430.40 - Step 6: Final answer
x = 508,793.33
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1.5x scale
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.