Finding the Fourth Proportional to 1,064,511.12, 1,596,789.12 and 381,442.44
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Solution
The fourth proportional to 1,064,511.12, 1,596,789.12 and 381,442.44 is: 572,171.70
Step by Step Solution
- Step 1: Write the proportion equation
1,064,511.12 : 1,596,789.12 = 381,442.44 : x - Step 2: Convert to fraction form
1,064,511.12/1,596,789.12 = 381,442.44/x - Step 3: Cross multiply
1,064,511.12x = 1,596,789.12 × 381,442.44 - Step 4: Simplify right side
1,064,511.12x = 609,083,138,098.25 - Step 5: Solve for x
x = 609,083,138,098.25/1,064,511.12 - Step 6: Final answer
x = 572,171.70
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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.