Finding the Fourth Proportional to 920,766.24, 1,270,853.49 and 618,785.28
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Solution
The fourth proportional to 920,766.24, 1,270,853.49 and 618,785.28 is: 854,055.46
Step by Step Solution
- Step 1: Write the proportion equation
920,766.24 : 1,270,853.49 = 618,785.28 : x - Step 2: Convert to fraction form
920,766.24/1,270,853.49 = 618,785.28/x - Step 3: Cross multiply
920,766.24x = 1,270,853.49 × 618,785.28 - Step 4: Simplify right side
920,766.24x = 786,385,432,648.63 - Step 5: Solve for x
x = 786,385,432,648.63/920,766.24 - Step 6: Final answer
x = 854,055.46
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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.