Finding the Fourth Proportional to 447,749.40, 671,624.10 and 306,031.80
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Solution
The fourth proportional to 447,749.40, 671,624.10 and 306,031.80 is: 459,047.70
Step by Step Solution
- Step 1: Write the proportion equation
447,749.40 : 671,624.10 = 306,031.80 : x - Step 2: Convert to fraction form
447,749.40/671,624.10 = 306,031.80/x - Step 3: Cross multiply
447,749.40x = 671,624.10 × 306,031.80 - Step 4: Simplify right side
447,749.40x = 205,538,332,246.38 - Step 5: Solve for x
x = 205,538,332,246.38/447,749.40 - Step 6: Final answer
x = 459,047.70
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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.