Finding the Fourth Proportional to 672,936.54, 928,626.76 and 371,130.54
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Solution
The fourth proportional to 672,936.54, 928,626.76 and 371,130.54 is: 512,145.99
Step by Step Solution
- Step 1: Write the proportion equation
672,936.54 : 928,626.76 = 371,130.54 : x - Step 2: Convert to fraction form
672,936.54/928,626.76 = 371,130.54/x - Step 3: Cross multiply
672,936.54x = 928,626.76 × 371,130.54 - Step 4: Simplify right side
672,936.54x = 344,641,750,897.25 - Step 5: Solve for x
x = 344,641,750,897.25/672,936.54 - Step 6: Final answer
x = 512,145.99
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1.5x scale
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.