Finding the Fourth Proportional to 1,383,442.08, 1,909,179.28 and 779,829.92
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Solution
The fourth proportional to 1,383,442.08, 1,909,179.28 and 779,829.92 is: 1,076,181.75
Step by Step Solution
- Step 1: Write the proportion equation
1,383,442.08 : 1,909,179.28 = 779,829.92 : x - Step 2: Convert to fraction form
1,383,442.08/1,909,179.28 = 779,829.92/x - Step 3: Cross multiply
1,383,442.08x = 1,909,179.28 × 779,829.92 - Step 4: Simplify right side
1,383,442.08x = 1,488,835,125,188.06 - Step 5: Solve for x
x = 1,488,835,125,188.06/1,383,442.08 - Step 6: Final answer
x = 1,076,181.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.