Finding the Fourth Proportional to 3,896,013.48, 5,374,926.54 and 2,589,897.12
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Solution
The fourth proportional to 3,896,013.48, 5,374,926.54 and 2,589,897.12 is: 3,573,012.99
Step by Step Solution
- Step 1: Write the proportion equation
3,896,013.48 : 5,374,926.54 = 2,589,897.12 : x - Step 2: Convert to fraction form
3,896,013.48/5,374,926.54 = 2,589,897.12/x - Step 3: Cross multiply
3,896,013.48x = 5,374,926.54 × 2,589,897.12 - Step 4: Simplify right side
3,896,013.48x = 13,920,506,766,157.57 - Step 5: Solve for x
x = 13,920,506,766,157.57/3,896,013.48 - Step 6: Final answer
x = 3,573,012.99
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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.