Finding the Fourth Proportional to 717,961.29, 990,793.13 and 395,683.08
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Solution
The fourth proportional to 717,961.29, 990,793.13 and 395,683.08 is: 546,046.26
Step by Step Solution
- Step 1: Write the proportion equation
717,961.29 : 990,793.13 = 395,683.08 : x - Step 2: Convert to fraction form
717,961.29/990,793.13 = 395,683.08/x - Step 3: Cross multiply
717,961.29x = 990,793.13 × 395,683.08 - Step 4: Simplify right side
717,961.29x = 392,040,075,342.83 - Step 5: Solve for x
x = 392,040,075,342.83/717,961.29 - Step 6: Final answer
x = 546,046.26
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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.