Finding the Fourth Proportional to 2,520,616.80, 3,478,408.80 and 1,374,628.80
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Solution
The fourth proportional to 2,520,616.80, 3,478,408.80 and 1,374,628.80 is: 1,896,964.63
Step by Step Solution
- Step 1: Write the proportion equation
2,520,616.80 : 3,478,408.80 = 1,374,628.80 : x - Step 2: Convert to fraction form
2,520,616.80/3,478,408.80 = 1,374,628.80/x - Step 3: Cross multiply
2,520,616.80x = 3,478,408.80 × 1,374,628.80 - Step 4: Simplify right side
2,520,616.80x = 4,781,520,914,653.44 - Step 5: Solve for x
x = 4,781,520,914,653.44/2,520,616.80 - Step 6: Final answer
x = 1,896,964.63
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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.