Finding the Fourth Proportional to 1,201,958.64, 1,658,639.88 and 657,990.18
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Solution
The fourth proportional to 1,201,958.64, 1,658,639.88 and 657,990.18 is: 907,991.94
Step by Step Solution
- Step 1: Write the proportion equation
1,201,958.64 : 1,658,639.88 = 657,990.18 : x - Step 2: Convert to fraction form
1,201,958.64/1,658,639.88 = 657,990.18/x - Step 3: Cross multiply
1,201,958.64x = 1,658,639.88 × 657,990.18 - Step 4: Simplify right side
1,201,958.64x = 1,091,368,753,196.38 - Step 5: Solve for x
x = 1,091,368,753,196.38/1,201,958.64 - Step 6: Final answer
x = 907,991.94
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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.