Finding the Fourth Proportional to 747,472.35, 1,031,153.05 and 489,235.61
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Solution
The fourth proportional to 747,472.35, 1,031,153.05 and 489,235.61 is: 674,910.31
Step by Step Solution
- Step 1: Write the proportion equation
747,472.35 : 1,031,153.05 = 489,235.61 : x - Step 2: Convert to fraction form
747,472.35/1,031,153.05 = 489,235.61/x - Step 3: Cross multiply
747,472.35x = 1,031,153.05 × 489,235.61 - Step 4: Simplify right side
747,472.35x = 504,476,794,609.54 - Step 5: Solve for x
x = 504,476,794,609.54/747,472.35 - Step 6: Final answer
x = 674,910.31
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1.5x scale
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.