Finding the Fourth Proportional to 753,863.24, 1,130,619.63 and 221,241.26
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Solution
The fourth proportional to 753,863.24, 1,130,619.63 and 221,241.26 is: 331,810.46
Step by Step Solution
- Step 1: Write the proportion equation
753,863.24 : 1,130,619.63 = 221,241.26 : x - Step 2: Convert to fraction form
753,863.24/1,130,619.63 = 221,241.26/x - Step 3: Cross multiply
753,863.24x = 1,130,619.63 × 221,241.26 - Step 4: Simplify right side
753,863.24x = 250,139,711,521.93 - Step 5: Solve for x
x = 250,139,711,521.93/753,863.24 - Step 6: Final answer
x = 331,810.46
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1.5x scale
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.