Finding the Fourth Proportional to 4,763,419.98, 7,145,135.76 and 1,305,189.24
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Solution
The fourth proportional to 4,763,419.98, 7,145,135.76 and 1,305,189.24 is: 1,957,785.45
Step by Step Solution
- Step 1: Write the proportion equation
4,763,419.98 : 7,145,135.76 = 1,305,189.24 : x - Step 2: Convert to fraction form
4,763,419.98/7,145,135.76 = 1,305,189.24/x - Step 3: Cross multiply
4,763,419.98x = 7,145,135.76 × 1,305,189.24 - Step 4: Simplify right side
4,763,419.98x = 9,325,754,312,291.22 - Step 5: Solve for x
x = 9,325,754,312,291.22/4,763,419.98 - Step 6: Final answer
x = 1,957,785.45
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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.