Finding the Fourth Proportional to 438,509.28, 604,638.36 and 323,953.68
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Solution
The fourth proportional to 438,509.28, 604,638.36 and 323,953.68 is: 446,683.41
Step by Step Solution
- Step 1: Write the proportion equation
438,509.28 : 604,638.36 = 323,953.68 : x - Step 2: Convert to fraction form
438,509.28/604,638.36 = 323,953.68/x - Step 3: Cross multiply
438,509.28x = 604,638.36 × 323,953.68 - Step 4: Simplify right side
438,509.28x = 195,874,821,791.17 - Step 5: Solve for x
x = 195,874,821,791.17/438,509.28 - Step 6: Final answer
x = 446,683.41
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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.