Finding the Fourth Proportional to 3,928,344.78, 5,892,766.20 and 1,232,776.26
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Solution
The fourth proportional to 3,928,344.78, 5,892,766.20 and 1,232,776.26 is: 1,849,242.54
Step by Step Solution
- Step 1: Write the proportion equation
3,928,344.78 : 5,892,766.20 = 1,232,776.26 : x - Step 2: Convert to fraction form
3,928,344.78/5,892,766.20 = 1,232,776.26/x - Step 3: Cross multiply
3,928,344.78x = 5,892,766.20 × 1,232,776.26 - Step 4: Simplify right side
3,928,344.78x = 7,264,462,277,090.41 - Step 5: Solve for x
x = 7,264,462,277,090.41/3,928,344.78 - Step 6: Final answer
x = 1,849,242.54
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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.