Finding the Fourth Proportional to 2,815,605.72, 3,888,743.49 and 1,908,613.08
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Solution
The fourth proportional to 2,815,605.72, 3,888,743.49 and 1,908,613.08 is: 2,636,060.38
Step by Step Solution
- Step 1: Write the proportion equation
2,815,605.72 : 3,888,743.49 = 1,908,613.08 : x - Step 2: Convert to fraction form
2,815,605.72/3,888,743.49 = 1,908,613.08/x - Step 3: Cross multiply
2,815,605.72x = 3,888,743.49 × 1,908,613.08 - Step 4: Simplify right side
2,815,605.72x = 7,422,106,689,778.85 - Step 5: Solve for x
x = 7,422,106,689,778.85/2,815,605.72 - Step 6: Final answer
x = 2,636,060.38
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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.