Finding the Fourth Proportional to 535,790.10, 739,341.36 and 317,961.12
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Solution
The fourth proportional to 535,790.10, 739,341.36 and 317,961.12 is: 438,757.28
Step by Step Solution
- Step 1: Write the proportion equation
535,790.10 : 739,341.36 = 317,961.12 : x - Step 2: Convert to fraction form
535,790.10/739,341.36 = 317,961.12/x - Step 3: Cross multiply
535,790.10x = 739,341.36 × 317,961.12 - Step 4: Simplify right side
535,790.10x = 235,081,806,887.92 - Step 5: Solve for x
x = 235,081,806,887.92/535,790.10 - Step 6: Final answer
x = 438,757.28
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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.