Finding the Fourth Proportional to 1,342,538.80, 2,013,874.58 and 383,135.81
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Solution
The fourth proportional to 1,342,538.80, 2,013,874.58 and 383,135.81 is: 574,722.66
Step by Step Solution
- Step 1: Write the proportion equation
1,342,538.80 : 2,013,874.58 = 383,135.81 : x - Step 2: Convert to fraction form
1,342,538.80/2,013,874.58 = 383,135.81/x - Step 3: Cross multiply
1,342,538.80x = 2,013,874.58 × 383,135.81 - Step 4: Simplify right side
1,342,538.80x = 771,587,468,446.71 - Step 5: Solve for x
x = 771,587,468,446.71/1,342,538.80 - Step 6: Final answer
x = 574,722.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.