Finding the Fourth Proportional to 758,743.80, 1,138,115.70 and 723,751.80
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Solution
The fourth proportional to 758,743.80, 1,138,115.70 and 723,751.80 is: 1,085,627.70
Step by Step Solution
- Step 1: Write the proportion equation
758,743.80 : 1,138,115.70 = 723,751.80 : x - Step 2: Convert to fraction form
758,743.80/1,138,115.70 = 723,751.80/x - Step 3: Cross multiply
758,743.80x = 1,138,115.70 × 723,751.80 - Step 4: Simplify right side
758,743.80x = 823,713,286,483.26 - Step 5: Solve for x
x = 823,713,286,483.26/758,743.80 - Step 6: Final answer
x = 1,085,627.70
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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.