Finding the Fourth Proportional to 2,142,445.35, 2,956,625.68 and 1,224,759.88
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Solution
The fourth proportional to 2,142,445.35, 2,956,625.68 and 1,224,759.88 is: 1,690,197.84
Step by Step Solution
- Step 1: Write the proportion equation
2,142,445.35 : 2,956,625.68 = 1,224,759.88 : x - Step 2: Convert to fraction form
2,142,445.35/2,956,625.68 = 1,224,759.88/x - Step 3: Cross multiply
2,142,445.35x = 2,956,625.68 × 1,224,759.88 - Step 4: Simplify right side
2,142,445.35x = 3,621,156,513,041.72 - Step 5: Solve for x
x = 3,621,156,513,041.72/2,142,445.35 - Step 6: Final answer
x = 1,690,197.84
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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.