Finding the Fourth Proportional to 2,115,878.40, 3,174,284.16 and 695,877.12
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Solution
The fourth proportional to 2,115,878.40, 3,174,284.16 and 695,877.12 is: 1,043,969.12
Step by Step Solution
- Step 1: Write the proportion equation
2,115,878.40 : 3,174,284.16 = 695,877.12 : x - Step 2: Convert to fraction form
2,115,878.40/3,174,284.16 = 695,877.12/x - Step 3: Cross multiply
2,115,878.40x = 3,174,284.16 × 695,877.12 - Step 4: Simplify right side
2,115,878.40x = 2,208,911,719,322.42 - Step 5: Solve for x
x = 2,208,911,719,322.42/2,115,878.40 - Step 6: Final answer
x = 1,043,969.12
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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.