Finding the Fourth Proportional to 761,422.20, 1,050,369.58 and 516,324.08
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Solution
The fourth proportional to 761,422.20, 1,050,369.58 and 516,324.08 is: 712,260.70
Step by Step Solution
- Step 1: Write the proportion equation
761,422.20 : 1,050,369.58 = 516,324.08 : x - Step 2: Convert to fraction form
761,422.20/1,050,369.58 = 516,324.08/x - Step 3: Cross multiply
761,422.20x = 1,050,369.58 × 516,324.08 - Step 4: Simplify right side
761,422.20x = 542,331,107,053.49 - Step 5: Solve for x
x = 542,331,107,053.49/761,422.20 - Step 6: Final answer
x = 712,260.70
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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.