Finding the Fourth Proportional to 447,146.40, 616,749.36 and 303,657.12
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Solution
The fourth proportional to 447,146.40, 616,749.36 and 303,657.12 is: 418,834.49
Step by Step Solution
- Step 1: Write the proportion equation
447,146.40 : 616,749.36 = 303,657.12 : x - Step 2: Convert to fraction form
447,146.40/616,749.36 = 303,657.12/x - Step 3: Cross multiply
447,146.40x = 616,749.36 × 303,657.12 - Step 4: Simplify right side
447,146.40x = 187,280,334,419.44 - Step 5: Solve for x
x = 187,280,334,419.44/447,146.40 - Step 6: Final answer
x = 418,834.49
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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.