Finding the Fourth Proportional to 1,222,099.80, 1,687,320.02 and 935,107.08
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Solution
The fourth proportional to 1,222,099.80, 1,687,320.02 and 935,107.08 is: 1,291,076.96
Step by Step Solution
- Step 1: Write the proportion equation
1,222,099.80 : 1,687,320.02 = 935,107.08 : x - Step 2: Convert to fraction form
1,222,099.80/1,687,320.02 = 935,107.08/x - Step 3: Cross multiply
1,222,099.80x = 1,687,320.02 × 935,107.08 - Step 4: Simplify right side
1,222,099.80x = 1,577,824,896,927.74 - Step 5: Solve for x
x = 1,577,824,896,927.74/1,222,099.80 - Step 6: Final answer
x = 1,291,076.96
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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.