Finding the Fourth Proportional to 1,251,395.88, 1,860,995.79 and 1,211,537.40
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Solution
The fourth proportional to 1,251,395.88, 1,860,995.79 and 1,211,537.40 is: 1,801,720.81
Step by Step Solution
- Step 1: Write the proportion equation
1,251,395.88 : 1,860,995.79 = 1,211,537.40 : x - Step 2: Convert to fraction form
1,251,395.88/1,860,995.79 = 1,211,537.40/x - Step 3: Cross multiply
1,251,395.88x = 1,860,995.79 × 1,211,537.40 - Step 4: Simplify right side
1,251,395.88x = 2,254,666,000,827.55 - Step 5: Solve for x
x = 2,254,666,000,827.55/1,251,395.88 - Step 6: Final answer
x = 1,801,720.81
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.