Finding the Fourth Proportional to 755,126.70, 1,133,309.70 and 749,221.80
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Solution
The fourth proportional to 755,126.70, 1,133,309.70 and 749,221.80 is: 1,124,447.50
Step by Step Solution
- Step 1: Write the proportion equation
755,126.70 : 1,133,309.70 = 749,221.80 : x - Step 2: Convert to fraction form
755,126.70/1,133,309.70 = 749,221.80/x - Step 3: Cross multiply
755,126.70x = 1,133,309.70 × 749,221.80 - Step 4: Simplify right side
755,126.70x = 849,100,333,391.46 - Step 5: Solve for x
x = 849,100,333,391.46/755,126.70 - Step 6: Final answer
x = 1,124,447.50
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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.