Finding the Fourth Proportional to 761,720.70, 1,051,286.67 and 439,367.70
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Solution
The fourth proportional to 761,720.70, 1,051,286.67 and 439,367.70 is: 606,392.09
Step by Step Solution
- Step 1: Write the proportion equation
761,720.70 : 1,051,286.67 = 439,367.70 : x - Step 2: Convert to fraction form
761,720.70/1,051,286.67 = 439,367.70/x - Step 3: Cross multiply
761,720.70x = 1,051,286.67 × 439,367.70 - Step 4: Simplify right side
761,720.70x = 461,901,406,238.56 - Step 5: Solve for x
x = 461,901,406,238.56/761,720.70 - Step 6: Final answer
x = 606,392.09
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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.