Finding the Fourth Proportional to 968,143.86, 1,335,936.24 and 538,354.62
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Solution
The fourth proportional to 968,143.86, 1,335,936.24 and 538,354.62 is: 742,872.50
Step by Step Solution
- Step 1: Write the proportion equation
968,143.86 : 1,335,936.24 = 538,354.62 : x - Step 2: Convert to fraction form
968,143.86/1,335,936.24 = 538,354.62/x - Step 3: Cross multiply
968,143.86x = 1,335,936.24 × 538,354.62 - Step 4: Simplify right side
968,143.86x = 719,207,446,829.43 - Step 5: Solve for x
x = 719,207,446,829.43/968,143.86 - Step 6: Final answer
x = 742,872.50
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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.