Finding the Fourth Proportional to 803,402.21, 1,108,729.69 and 481,050.70
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Solution
The fourth proportional to 803,402.21, 1,108,729.69 and 481,050.70 is: 663,870.70
Step by Step Solution
- Step 1: Write the proportion equation
803,402.21 : 1,108,729.69 = 481,050.70 : x - Step 2: Convert to fraction form
803,402.21/1,108,729.69 = 481,050.70/x - Step 3: Cross multiply
803,402.21x = 1,108,729.69 × 481,050.70 - Step 4: Simplify right side
803,402.21x = 533,355,189,510.83 - Step 5: Solve for x
x = 533,355,189,510.83/803,402.21 - Step 6: Final answer
x = 663,870.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.