Finding the Fourth Proportional to 1,388,680.10, 2,083,135.35 and 442,024.10
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Solution
The fourth proportional to 1,388,680.10, 2,083,135.35 and 442,024.10 is: 663,072.82
Step by Step Solution
- Step 1: Write the proportion equation
1,388,680.10 : 2,083,135.35 = 442,024.10 : x - Step 2: Convert to fraction form
1,388,680.10/2,083,135.35 = 442,024.10/x - Step 3: Cross multiply
1,388,680.10x = 2,083,135.35 × 442,024.10 - Step 4: Simplify right side
1,388,680.10x = 920,796,028,261.94 - Step 5: Solve for x
x = 920,796,028,261.94/1,388,680.10 - Step 6: Final answer
x = 663,072.82
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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.