Finding the Fourth Proportional to 1,069,531.20, 1,603,795.68 and 620,380.80
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Solution
The fourth proportional to 1,069,531.20, 1,603,795.68 and 620,380.80 is: 930,280.53
Step by Step Solution
- Step 1: Write the proportion equation
1,069,531.20 : 1,603,795.68 = 620,380.80 : x - Step 2: Convert to fraction form
1,069,531.20/1,603,795.68 = 620,380.80/x - Step 3: Cross multiply
1,069,531.20x = 1,603,795.68 × 620,380.80 - Step 4: Simplify right side
1,069,531.20x = 994,964,046,994.94 - Step 5: Solve for x
x = 994,964,046,994.94/1,069,531.20 - Step 6: Final answer
x = 930,280.53
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1.5x scale
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.