Finding the Fourth Proportional to 621,556.56, 857,218.12 and 525,230.80
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Solution
The fourth proportional to 621,556.56, 857,218.12 and 525,230.80 is: 724,370.70
Step by Step Solution
- Step 1: Write the proportion equation
621,556.56 : 857,218.12 = 525,230.80 : x - Step 2: Convert to fraction form
621,556.56/857,218.12 = 525,230.80/x - Step 3: Cross multiply
621,556.56x = 857,218.12 × 525,230.80 - Step 4: Simplify right side
621,556.56x = 450,237,358,942.10 - Step 5: Solve for x
x = 450,237,358,942.10/621,556.56 - Step 6: Final answer
x = 724,370.70
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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.