Finding the Fourth Proportional to 1,382,919.42, 1,908,289.35 and 771,014.58
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Solution
The fourth proportional to 1,382,919.42, 1,908,289.35 and 771,014.58 is: 1,063,922.37
Step by Step Solution
- Step 1: Write the proportion equation
1,382,919.42 : 1,908,289.35 = 771,014.58 : x - Step 2: Convert to fraction form
1,382,919.42/1,908,289.35 = 771,014.58/x - Step 3: Cross multiply
1,382,919.42x = 1,908,289.35 × 771,014.58 - Step 4: Simplify right side
1,382,919.42x = 1,471,318,911,708.72 - Step 5: Solve for x
x = 1,471,318,911,708.72/1,382,919.42 - Step 6: Final answer
x = 1,063,922.37
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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.