Finding the Fourth Proportional to 1,078,750.80, 1,618,320.60 and 447,728.40
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Solution
The fourth proportional to 1,078,750.80, 1,618,320.60 and 447,728.40 is: 671,673.28
Step by Step Solution
- Step 1: Write the proportion equation
1,078,750.80 : 1,618,320.60 = 447,728.40 : x - Step 2: Convert to fraction form
1,078,750.80/1,618,320.60 = 447,728.40/x - Step 3: Cross multiply
1,078,750.80x = 1,618,320.60 × 447,728.40 - Step 4: Simplify right side
1,078,750.80x = 724,568,092,925.04 - Step 5: Solve for x
x = 724,568,092,925.04/1,078,750.80 - Step 6: Final answer
x = 671,673.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.