Finding the Fourth Proportional to 723,446.42, 998,369.80 and 396,738.74
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Solution
The fourth proportional to 723,446.42, 998,369.80 and 396,738.74 is: 547,507.00
Step by Step Solution
- Step 1: Write the proportion equation
723,446.42 : 998,369.80 = 396,738.74 : x - Step 2: Convert to fraction form
723,446.42/998,369.80 = 396,738.74/x - Step 3: Cross multiply
723,446.42x = 998,369.80 × 396,738.74 - Step 4: Simplify right side
723,446.42x = 396,091,976,506.05 - Step 5: Solve for x
x = 396,091,976,506.05/723,446.42 - Step 6: Final answer
x = 547,507.00
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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.