Finding the Fourth Proportional to 558,719.20, 838,078.80 and 203,744.80
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Solution
The fourth proportional to 558,719.20, 838,078.80 and 203,744.80 is: 305,617.20
Step by Step Solution
- Step 1: Write the proportion equation
558,719.20 : 838,078.80 = 203,744.80 : x - Step 2: Convert to fraction form
558,719.20/838,078.80 = 203,744.80/x - Step 3: Cross multiply
558,719.20x = 838,078.80 × 203,744.80 - Step 4: Simplify right side
558,719.20x = 170,754,197,490.24 - Step 5: Solve for x
x = 170,754,197,490.24/558,719.20 - Step 6: Final answer
x = 305,617.20
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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.