Finding the Fourth Proportional to 1,203,083.76, 1,660,228.80 and 679,745.52
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Solution
The fourth proportional to 1,203,083.76, 1,660,228.80 and 679,745.52 is: 938,033.68
Step by Step Solution
- Step 1: Write the proportion equation
1,203,083.76 : 1,660,228.80 = 679,745.52 : x - Step 2: Convert to fraction form
1,203,083.76/1,660,228.80 = 679,745.52/x - Step 3: Cross multiply
1,203,083.76x = 1,660,228.80 × 679,745.52 - Step 4: Simplify right side
1,203,083.76x = 1,128,533,088,974.98 - Step 5: Solve for x
x = 1,128,533,088,974.98/1,203,083.76 - Step 6: Final answer
x = 938,033.68
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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.