Finding the Fourth Proportional to 2,479,435.34, 3,421,432.99 and 1,391,496.80
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Solution
The fourth proportional to 2,479,435.34, 3,421,432.99 and 1,391,496.80 is: 1,920,160.20
Step by Step Solution
- Step 1: Write the proportion equation
2,479,435.34 : 3,421,432.99 = 1,391,496.80 : x - Step 2: Convert to fraction form
2,479,435.34/3,421,432.99 = 1,391,496.80/x - Step 3: Cross multiply
2,479,435.34x = 3,421,432.99 × 1,391,496.80 - Step 4: Simplify right side
2,479,435.34x = 4,760,913,056,999.43 - Step 5: Solve for x
x = 4,760,913,056,999.43/2,479,435.34 - Step 6: Final answer
x = 1,920,160.20
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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.