Finding the Fourth Proportional to 1,428,351.23, 2,142,305.41 and 417,201.69
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Solution
The fourth proportional to 1,428,351.23, 2,142,305.41 and 417,201.69 is: 625,737.85
Step by Step Solution
- Step 1: Write the proportion equation
1,428,351.23 : 2,142,305.41 = 417,201.69 : x - Step 2: Convert to fraction form
1,428,351.23/2,142,305.41 = 417,201.69/x - Step 3: Cross multiply
1,428,351.23x = 2,142,305.41 × 417,201.69 - Step 4: Simplify right side
1,428,351.23x = 893,773,432,977.28 - Step 5: Solve for x
x = 893,773,432,977.28/1,428,351.23 - Step 6: Final answer
x = 625,737.85
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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.