Finding the Fourth Proportional to 1,220,534.28, 1,684,390.56 and 676,635.48
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Solution
The fourth proportional to 1,220,534.28, 1,684,390.56 and 676,635.48 is: 933,786.48
Step by Step Solution
- Step 1: Write the proportion equation
1,220,534.28 : 1,684,390.56 = 676,635.48 : x - Step 2: Convert to fraction form
1,220,534.28/1,684,390.56 = 676,635.48/x - Step 3: Cross multiply
1,220,534.28x = 1,684,390.56 × 676,635.48 - Step 4: Simplify right side
1,220,534.28x = 1,139,718,415,073.07 - Step 5: Solve for x
x = 1,139,718,415,073.07/1,220,534.28 - Step 6: Final answer
x = 933,786.48
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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.