Finding the Fourth Proportional to 749,163.78, 1,033,849.44 and 409,631.76
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Solution
The fourth proportional to 749,163.78, 1,033,849.44 and 409,631.76 is: 565,293.70
Step by Step Solution
- Step 1: Write the proportion equation
749,163.78 : 1,033,849.44 = 409,631.76 : x - Step 2: Convert to fraction form
749,163.78/1,033,849.44 = 409,631.76/x - Step 3: Cross multiply
749,163.78x = 1,033,849.44 × 409,631.76 - Step 4: Simplify right side
749,163.78x = 423,497,565,682.21 - Step 5: Solve for x
x = 423,497,565,682.21/749,163.78 - Step 6: Final answer
x = 565,293.70
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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.