Finding the Fourth Proportional to 618,765.68, 853,828.16 and 343,116.60
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Solution
The fourth proportional to 618,765.68, 853,828.16 and 343,116.60 is: 473,462.94
Step by Step Solution
- Step 1: Write the proportion equation
618,765.68 : 853,828.16 = 343,116.60 : x - Step 2: Convert to fraction form
618,765.68/853,828.16 = 343,116.60/x - Step 3: Cross multiply
618,765.68x = 853,828.16 × 343,116.60 - Step 4: Simplify right side
618,765.68x = 292,962,615,243.46 - Step 5: Solve for x
x = 292,962,615,243.46/618,765.68 - Step 6: Final answer
x = 473,462.94
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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.