Finding the Fourth Proportional to 758,953.80, 1,138,430.70 and 723,961.80
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Solution
The fourth proportional to 758,953.80, 1,138,430.70 and 723,961.80 is: 1,085,942.70
Step by Step Solution
- Step 1: Write the proportion equation
758,953.80 : 1,138,430.70 = 723,961.80 : x - Step 2: Convert to fraction form
758,953.80/1,138,430.70 = 723,961.80/x - Step 3: Cross multiply
758,953.80x = 1,138,430.70 × 723,961.80 - Step 4: Simplify right side
758,953.80x = 824,180,338,747.26 - Step 5: Solve for x
x = 824,180,338,747.26/758,953.80 - Step 6: Final answer
x = 1,085,942.70
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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.