Finding the Fourth Proportional to 2,190,933.43, 3,023,432.33 and 1,224,070.99
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Solution
The fourth proportional to 2,190,933.43, 3,023,432.33 and 1,224,070.99 is: 1,689,186.78
Step by Step Solution
- Step 1: Write the proportion equation
2,190,933.43 : 3,023,432.33 = 1,224,070.99 : x - Step 2: Convert to fraction form
2,190,933.43/3,023,432.33 = 1,224,070.99/x - Step 3: Cross multiply
2,190,933.43x = 3,023,432.33 × 1,224,070.99 - Step 4: Simplify right side
2,190,933.43x = 3,700,895,791,702.17 - Step 5: Solve for x
x = 3,700,895,791,702.17/2,190,933.43 - Step 6: Final answer
x = 1,689,186.78
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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.