Finding the Fourth Proportional to 880,388.28, 1,212,215.42 and 687,574.84
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Solution
The fourth proportional to 880,388.28, 1,212,215.42 and 687,574.84 is: 946,728.67
Step by Step Solution
- Step 1: Write the proportion equation
880,388.28 : 1,212,215.42 = 687,574.84 : x - Step 2: Convert to fraction form
880,388.28/1,212,215.42 = 687,574.84/x - Step 3: Cross multiply
880,388.28x = 1,212,215.42 × 687,574.84 - Step 4: Simplify right side
880,388.28x = 833,488,823,452.03 - Step 5: Solve for x
x = 833,488,823,452.03/880,388.28 - Step 6: Final answer
x = 946,728.67
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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.