Finding the Fourth Proportional to 457,418.24, 631,030.16 and 276,072.20
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Solution
The fourth proportional to 457,418.24, 631,030.16 and 276,072.20 is: 380,854.70
Step by Step Solution
- Step 1: Write the proportion equation
457,418.24 : 631,030.16 = 276,072.20 : x - Step 2: Convert to fraction form
457,418.24/631,030.16 = 276,072.20/x - Step 3: Cross multiply
457,418.24x = 631,030.16 × 276,072.20 - Step 4: Simplify right side
457,418.24x = 174,209,884,537.55 - Step 5: Solve for x
x = 174,209,884,537.55/457,418.24 - Step 6: Final answer
x = 380,854.70
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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.