Finding the Fourth Proportional to 1,919,053.64, 2,878,593.82 and 1,318,193.62
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Solution
The fourth proportional to 1,919,053.64, 2,878,593.82 and 1,318,193.62 is: 1,977,299.61
Step by Step Solution
- Step 1: Write the proportion equation
1,919,053.64 : 2,878,593.82 = 1,318,193.62 : x - Step 2: Convert to fraction form
1,919,053.64/2,878,593.82 = 1,318,193.62/x - Step 3: Cross multiply
1,919,053.64x = 2,878,593.82 × 1,318,193.62 - Step 4: Simplify right side
1,919,053.64x = 3,794,544,008,095.43 - Step 5: Solve for x
x = 3,794,544,008,095.43/1,919,053.64 - Step 6: Final answer
x = 1,977,299.61
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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.