Finding the Fourth Proportional to 717,858.32, 990,597.84 and 395,568.41
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Solution
The fourth proportional to 717,858.32, 990,597.84 and 395,568.41 is: 545,858.70
Step by Step Solution
- Step 1: Write the proportion equation
717,858.32 : 990,597.84 = 395,568.41 : x - Step 2: Convert to fraction form
717,858.32/990,597.84 = 395,568.41/x - Step 3: Cross multiply
717,858.32x = 990,597.84 × 395,568.41 - Step 4: Simplify right side
717,858.32x = 391,849,207,565.25 - Step 5: Solve for x
x = 391,849,207,565.25/717,858.32 - Step 6: Final answer
x = 545,858.70
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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.