Finding the Fourth Proportional to 2,130,611.16, 2,940,225.87 and 1,163,742.12
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Solution
The fourth proportional to 2,130,611.16, 2,940,225.87 and 1,163,742.12 is: 1,605,954.55
Step by Step Solution
- Step 1: Write the proportion equation
2,130,611.16 : 2,940,225.87 = 1,163,742.12 : x - Step 2: Convert to fraction form
2,130,611.16/2,940,225.87 = 1,163,742.12/x - Step 3: Cross multiply
2,130,611.16x = 2,940,225.87 × 1,163,742.12 - Step 4: Simplify right side
2,130,611.16x = 3,421,664,687,232.65 - Step 5: Solve for x
x = 3,421,664,687,232.65/2,130,611.16 - Step 6: Final answer
x = 1,605,954.55
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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.