Finding the Fourth Proportional to 628,162.02, 867,017.54 and 356,388.99
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Solution
The fourth proportional to 628,162.02, 867,017.54 and 356,388.99 is: 491,904.15
Step by Step Solution
- Step 1: Write the proportion equation
628,162.02 : 867,017.54 = 356,388.99 : x - Step 2: Convert to fraction form
628,162.02/867,017.54 = 356,388.99/x - Step 3: Cross multiply
628,162.02x = 867,017.54 × 356,388.99 - Step 4: Simplify right side
628,162.02x = 308,995,503,610.94 - Step 5: Solve for x
x = 308,995,503,610.94/628,162.02 - Step 6: Final answer
x = 491,904.15
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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.