Finding the Fourth Proportional to 2,248,718.05, 3,103,234.99 and 1,230,122.80
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Solution
The fourth proportional to 2,248,718.05, 3,103,234.99 and 1,230,122.80 is: 1,697,571.70
Step by Step Solution
- Step 1: Write the proportion equation
2,248,718.05 : 3,103,234.99 = 1,230,122.80 : x - Step 2: Convert to fraction form
2,248,718.05/3,103,234.99 = 1,230,122.80/x - Step 3: Cross multiply
2,248,718.05x = 3,103,234.99 × 1,230,122.80 - Step 4: Simplify right side
2,248,718.05x = 3,817,360,122,679.95 - Step 5: Solve for x
x = 3,817,360,122,679.95/2,248,718.05 - Step 6: Final answer
x = 1,697,571.70
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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.