Finding the Fourth Proportional to 1,119,646.39, 1,679,470.75 and 278,198.14
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Solution
The fourth proportional to 1,119,646.39, 1,679,470.75 and 278,198.14 is: 417,297.50
Step by Step Solution
- Step 1: Write the proportion equation
1,119,646.39 : 1,679,470.75 = 278,198.14 : x - Step 2: Convert to fraction form
1,119,646.39/1,679,470.75 = 278,198.14/x - Step 3: Cross multiply
1,119,646.39x = 1,679,470.75 × 278,198.14 - Step 4: Simplify right side
1,119,646.39x = 467,225,643,728.58 - Step 5: Solve for x
x = 467,225,643,728.58/1,119,646.39 - Step 6: Final answer
x = 417,297.50
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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.