Finding the Fourth Proportional to 1,102,139.48, 1,653,226.74 and 419,036.75
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Solution
The fourth proportional to 1,102,139.48, 1,653,226.74 and 419,036.75 is: 628,561.78
Step by Step Solution
- Step 1: Write the proportion equation
1,102,139.48 : 1,653,226.74 = 419,036.75 : x - Step 2: Convert to fraction form
1,102,139.48/1,653,226.74 = 419,036.75/x - Step 3: Cross multiply
1,102,139.48x = 1,653,226.74 × 419,036.75 - Step 4: Simplify right side
1,102,139.48x = 692,762,758,076.16 - Step 5: Solve for x
x = 692,762,758,076.16/1,102,139.48 - Step 6: Final answer
x = 628,561.78
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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.