Finding the Fourth Proportional to 1,178,410.14, 1,768,390.11 and 646,304.67
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Solution
The fourth proportional to 1,178,410.14, 1,768,390.11 and 646,304.67 is: 969,882.00
Step by Step Solution
- Step 1: Write the proportion equation
1,178,410.14 : 1,768,390.11 = 646,304.67 : x - Step 2: Convert to fraction form
1,178,410.14/1,768,390.11 = 646,304.67/x - Step 3: Cross multiply
1,178,410.14x = 1,768,390.11 × 646,304.67 - Step 4: Simplify right side
1,178,410.14x = 1,142,918,786,474.81 - Step 5: Solve for x
x = 1,142,918,786,474.81/1,178,410.14 - Step 6: Final answer
x = 969,882.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.