Finding the Fourth Proportional to 828,156.87, 1,241,349.54 and 378,203.49
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Solution
The fourth proportional to 828,156.87, 1,241,349.54 and 378,203.49 is: 566,900.72
Step by Step Solution
- Step 1: Write the proportion equation
828,156.87 : 1,241,349.54 = 378,203.49 : x - Step 2: Convert to fraction form
828,156.87/1,241,349.54 = 378,203.49/x - Step 3: Cross multiply
828,156.87x = 1,241,349.54 × 378,203.49 - Step 4: Simplify right side
828,156.87x = 469,482,728,337.90 - Step 5: Solve for x
x = 469,482,728,337.90/828,156.87 - Step 6: Final answer
x = 566,900.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.