Finding the Fourth Proportional to 510,449.21, 704,407.49 and 281,004.63
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Solution
The fourth proportional to 510,449.21, 704,407.49 and 281,004.63 is: 387,779.55
Step by Step Solution
- Step 1: Write the proportion equation
510,449.21 : 704,407.49 = 281,004.63 : x - Step 2: Convert to fraction form
510,449.21/704,407.49 = 281,004.63/x - Step 3: Cross multiply
510,449.21x = 704,407.49 × 281,004.63 - Step 4: Simplify right side
510,449.21x = 197,941,763,103.90 - Step 5: Solve for x
x = 197,941,763,103.90/510,449.21 - Step 6: Final answer
x = 387,779.55
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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.