Finding the Fourth Proportional to 4,687,399.16, 7,031,661.27 and 1,654,138.70
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Solution
The fourth proportional to 4,687,399.16, 7,031,661.27 and 1,654,138.70 is: 2,481,406.56
Step by Step Solution
- Step 1: Write the proportion equation
4,687,399.16 : 7,031,661.27 = 1,654,138.70 : x - Step 2: Convert to fraction form
4,687,399.16/7,031,661.27 = 1,654,138.70/x - Step 3: Cross multiply
4,687,399.16x = 7,031,661.27 × 1,654,138.70 - Step 4: Simplify right side
4,687,399.16x = 11,631,342,996,839.84 - Step 5: Solve for x
x = 11,631,342,996,839.84/4,687,399.16 - Step 6: Final answer
x = 2,481,406.56
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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.