Finding the Fourth Proportional to 749,414.72, 1,034,129.52 and 422,709.68
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Solution
The fourth proportional to 749,414.72, 1,034,129.52 and 422,709.68 is: 583,303.94
Step by Step Solution
- Step 1: Write the proportion equation
749,414.72 : 1,034,129.52 = 422,709.68 : x - Step 2: Convert to fraction form
749,414.72/1,034,129.52 = 422,709.68/x - Step 3: Cross multiply
749,414.72x = 1,034,129.52 × 422,709.68 - Step 4: Simplify right side
749,414.72x = 437,136,558,477.75 - Step 5: Solve for x
x = 437,136,558,477.75/749,414.72 - Step 6: Final answer
x = 583,303.94
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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.