Finding the Fourth Proportional to 3,938,632.98, 5,437,129.50 and 2,306,815.08
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Solution
The fourth proportional to 3,938,632.98, 5,437,129.50 and 2,306,815.08 is: 3,184,468.41
Step by Step Solution
- Step 1: Write the proportion equation
3,938,632.98 : 5,437,129.50 = 2,306,815.08 : x - Step 2: Convert to fraction form
3,938,632.98/5,437,129.50 = 2,306,815.08/x - Step 3: Cross multiply
3,938,632.98x = 5,437,129.50 × 2,306,815.08 - Step 4: Simplify right side
3,938,632.98x = 12,542,452,322,512.86 - Step 5: Solve for x
x = 12,542,452,322,512.86/3,938,632.98 - Step 6: Final answer
x = 3,184,468.41
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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.