Finding the Fourth Proportional to 1,689,626.69, 2,534,437.88 and 678,748.58
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Solution
The fourth proportional to 1,689,626.69, 2,534,437.88 and 678,748.58 is: 1,018,122.00
Step by Step Solution
- Step 1: Write the proportion equation
1,689,626.69 : 2,534,437.88 = 678,748.58 : x - Step 2: Convert to fraction form
1,689,626.69/2,534,437.88 = 678,748.58/x - Step 3: Cross multiply
1,689,626.69x = 2,534,437.88 × 678,748.58 - Step 4: Simplify right side
1,689,626.69x = 1,720,246,108,754.47 - Step 5: Solve for x
x = 1,720,246,108,754.47/1,689,626.69 - Step 6: Final answer
x = 1,018,122.00
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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.