Finding the Fourth Proportional to 865,745.70, 1,298,618.55 and 655,793.70
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Solution
The fourth proportional to 865,745.70, 1,298,618.55 and 655,793.70 is: 983,690.55
Step by Step Solution
- Step 1: Write the proportion equation
865,745.70 : 1,298,618.55 = 655,793.70 : x - Step 2: Convert to fraction form
865,745.70/1,298,618.55 = 655,793.70/x - Step 3: Cross multiply
865,745.70x = 1,298,618.55 × 655,793.70 - Step 4: Simplify right side
865,745.70x = 851,625,863,793.14 - Step 5: Solve for x
x = 851,625,863,793.14/865,745.70 - Step 6: Final answer
x = 983,690.55
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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.