Finding the Fourth Proportional to 1,383,439.08, 1,909,175.14 and 779,826.92
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Solution
The fourth proportional to 1,383,439.08, 1,909,175.14 and 779,826.92 is: 1,076,177.61
Step by Step Solution
- Step 1: Write the proportion equation
1,383,439.08 : 1,909,175.14 = 779,826.92 : x - Step 2: Convert to fraction form
1,383,439.08/1,909,175.14 = 779,826.92/x - Step 3: Cross multiply
1,383,439.08x = 1,909,175.14 × 779,826.92 - Step 4: Simplify right side
1,383,439.08x = 1,488,826,169,166.77 - Step 5: Solve for x
x = 1,488,826,169,166.77/1,383,439.08 - Step 6: Final answer
x = 1,076,177.61
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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.