Finding the Fourth Proportional to 660,745.13, 911,750.91 and 388,753.20
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Solution
The fourth proportional to 660,745.13, 911,750.91 and 388,753.20 is: 536,433.90
Step by Step Solution
- Step 1: Write the proportion equation
660,745.13 : 911,750.91 = 388,753.20 : x - Step 2: Convert to fraction form
660,745.13/911,750.91 = 388,753.20/x - Step 3: Cross multiply
660,745.13x = 911,750.91 × 388,753.20 - Step 4: Simplify right side
660,745.13x = 354,446,083,865.41 - Step 5: Solve for x
x = 354,446,083,865.41/660,745.13 - Step 6: Final answer
x = 536,433.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.