Finding the Fourth Proportional to 1,931,194.92, 2,664,432.48 and 1,115,290.92
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Solution
The fourth proportional to 1,931,194.92, 2,664,432.48 and 1,115,290.92 is: 1,538,745.43
Step by Step Solution
- Step 1: Write the proportion equation
1,931,194.92 : 2,664,432.48 = 1,115,290.92 : x - Step 2: Convert to fraction form
1,931,194.92/2,664,432.48 = 1,115,290.92/x - Step 3: Cross multiply
1,931,194.92x = 2,664,432.48 × 1,115,290.92 - Step 4: Simplify right side
1,931,194.92x = 2,971,617,351,897.08 - Step 5: Solve for x
x = 2,971,617,351,897.08/1,931,194.92 - Step 6: Final answer
x = 1,538,745.43
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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.