Finding the Fourth Proportional to 899,235.72, 1,240,908.35 and 491,351.58
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Solution
The fourth proportional to 899,235.72, 1,240,908.35 and 491,351.58 is: 678,044.99
Step by Step Solution
- Step 1: Write the proportion equation
899,235.72 : 1,240,908.35 = 491,351.58 : x - Step 2: Convert to fraction form
899,235.72/1,240,908.35 = 491,351.58/x - Step 3: Cross multiply
899,235.72x = 1,240,908.35 × 491,351.58 - Step 4: Simplify right side
899,235.72x = 609,722,275,950.94 - Step 5: Solve for x
x = 609,722,275,950.94/899,235.72 - Step 6: Final answer
x = 678,044.99
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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.