Finding the Fourth Proportional to 903,279, 1,246,523.10 and 521,305.80
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Solution
The fourth proportional to 903,279, 1,246,523.10 and 521,305.80 is: 719,400.90
Step by Step Solution
- Step 1: Write the proportion equation
903,279 : 1,246,523.10 = 521,305.80 : x - Step 2: Convert to fraction form
903,279/1,246,523.10 = 521,305.80/x - Step 3: Cross multiply
903,279x = 1,246,523.10 × 521,305.80 - Step 4: Simplify right side
903,279x = 649,819,721,863.98 - Step 5: Solve for x
x = 649,819,721,863.98/903,279 - Step 6: Final answer
x = 719,400.90
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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.