Finding the Fourth Proportional to 717,388.08, 990,040.30 and 395,098.09
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Solution
The fourth proportional to 717,388.08, 990,040.30 and 395,098.09 is: 545,260.01
Step by Step Solution
- Step 1: Write the proportion equation
717,388.08 : 990,040.30 = 395,098.09 : x - Step 2: Convert to fraction form
717,388.08/990,040.30 = 395,098.09/x - Step 3: Cross multiply
717,388.08x = 990,040.30 × 395,098.09 - Step 4: Simplify right side
717,388.08x = 391,163,031,553.03 - Step 5: Solve for x
x = 391,163,031,553.03/717,388.08 - Step 6: Final answer
x = 545,260.01
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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.