Finding the Fourth Proportional to 2,658,851.66, 3,987,440.91 and 861,318.08
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Solution
The fourth proportional to 2,658,851.66, 3,987,440.91 and 861,318.08 is: 1,291,706.11
Step by Step Solution
- Step 1: Write the proportion equation
2,658,851.66 : 3,987,440.91 = 861,318.08 : x - Step 2: Convert to fraction form
2,658,851.66/3,987,440.91 = 861,318.08/x - Step 3: Cross multiply
2,658,851.66x = 3,987,440.91 × 861,318.08 - Step 4: Simplify right side
2,658,851.66x = 3,434,454,928,777.45 - Step 5: Solve for x
x = 3,434,454,928,777.45/2,658,851.66 - Step 6: Final answer
x = 1,291,706.11
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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.