Finding the Fourth Proportional to 717,952.16, 990,794.73 and 395,683.01
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Solution
The fourth proportional to 717,952.16, 990,794.73 and 395,683.01 is: 546,053.99
Step by Step Solution
- Step 1: Write the proportion equation
717,952.16 : 990,794.73 = 395,683.01 : x - Step 2: Convert to fraction form
717,952.16/990,794.73 = 395,683.01/x - Step 3: Cross multiply
717,952.16x = 990,794.73 × 395,683.01 - Step 4: Simplify right side
717,952.16x = 392,040,636,104.56 - Step 5: Solve for x
x = 392,040,636,104.56/717,952.16 - Step 6: Final answer
x = 546,053.99
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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.