Finding the Fourth Proportional to 457,637.44, 631,509.60 and 256,394.56
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Solution
The fourth proportional to 457,637.44, 631,509.60 and 256,394.56 is: 353,807.65
Step by Step Solution
- Step 1: Write the proportion equation
457,637.44 : 631,509.60 = 256,394.56 : x - Step 2: Convert to fraction form
457,637.44/631,509.60 = 256,394.56/x - Step 3: Cross multiply
457,637.44x = 631,509.60 × 256,394.56 - Step 4: Simplify right side
457,637.44x = 161,915,626,027.78 - Step 5: Solve for x
x = 161,915,626,027.78/457,637.44 - Step 6: Final answer
x = 353,807.65
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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.