Finding the Fourth Proportional to 1,630,555.96, 2,434,854.10 and 1,331,629.96
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Solution
The fourth proportional to 1,630,555.96, 2,434,854.10 and 1,331,629.96 is: 1,988,478.01
Step by Step Solution
- Step 1: Write the proportion equation
1,630,555.96 : 2,434,854.10 = 1,331,629.96 : x - Step 2: Convert to fraction form
1,630,555.96/2,434,854.10 = 1,331,629.96/x - Step 3: Cross multiply
1,630,555.96x = 2,434,854.10 × 1,331,629.96 - Step 4: Simplify right side
1,630,555.96x = 3,242,324,667,788.84 - Step 5: Solve for x
x = 3,242,324,667,788.84/1,630,555.96 - Step 6: Final answer
x = 1,988,478.01
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.