Finding the Fourth Proportional to 2,540,815.63, 3,506,351.05 and 1,379,271.07
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Solution
The fourth proportional to 2,540,815.63, 3,506,351.05 and 1,379,271.07 is: 1,903,407.91
Step by Step Solution
- Step 1: Write the proportion equation
2,540,815.63 : 3,506,351.05 = 1,379,271.07 : x - Step 2: Convert to fraction form
2,540,815.63/3,506,351.05 = 1,379,271.07/x - Step 3: Cross multiply
2,540,815.63x = 3,506,351.05 × 1,379,271.07 - Step 4: Simplify right side
2,540,815.63x = 4,836,208,570,636.15 - Step 5: Solve for x
x = 4,836,208,570,636.15/2,540,815.63 - Step 6: Final answer
x = 1,903,407.91
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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.