Finding the Fourth Proportional to 865,785.12, 1,194,765.80 and 478,616.88
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Solution
The fourth proportional to 865,785.12, 1,194,765.80 and 478,616.88 is: 660,481.53
Step by Step Solution
- Step 1: Write the proportion equation
865,785.12 : 1,194,765.80 = 478,616.88 : x - Step 2: Convert to fraction form
865,785.12/1,194,765.80 = 478,616.88/x - Step 3: Cross multiply
865,785.12x = 1,194,765.80 × 478,616.88 - Step 4: Simplify right side
865,785.12x = 571,835,079,526.70 - Step 5: Solve for x
x = 571,835,079,526.70/865,785.12 - Step 6: Final answer
x = 660,481.53
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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.