Finding the Fourth Proportional to 2,021,579.52, 2,789,659.68 and 1,103,625.60
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Solution
The fourth proportional to 2,021,579.52, 2,789,659.68 and 1,103,625.60 is: 1,522,937.79
Step by Step Solution
- Step 1: Write the proportion equation
2,021,579.52 : 2,789,659.68 = 1,103,625.60 : x - Step 2: Convert to fraction form
2,021,579.52/2,789,659.68 = 1,103,625.60/x - Step 3: Cross multiply
2,021,579.52x = 2,789,659.68 × 1,103,625.60 - Step 4: Simplify right side
2,021,579.52x = 3,078,739,838,135.81 - Step 5: Solve for x
x = 3,078,739,838,135.81/2,021,579.52 - Step 6: Final answer
x = 1,522,937.79
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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.