Finding the Fourth Proportional to 2,111,873.93, 2,914,408.40 and 1,240,744.91
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Solution
The fourth proportional to 2,111,873.93, 2,914,408.40 and 1,240,744.91 is: 1,712,241.12
Step by Step Solution
- Step 1: Write the proportion equation
2,111,873.93 : 2,914,408.40 = 1,240,744.91 : x - Step 2: Convert to fraction form
2,111,873.93/2,914,408.40 = 1,240,744.91/x - Step 3: Cross multiply
2,111,873.93x = 2,914,408.40 × 1,240,744.91 - Step 4: Simplify right side
2,111,873.93x = 3,616,037,378,114.51 - Step 5: Solve for x
x = 3,616,037,378,114.51/2,111,873.93 - Step 6: Final answer
x = 1,712,241.12
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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.