Finding the Fourth Proportional to 2,076,998.60, 3,115,497.90 and 1,275,681.80
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Solution
The fourth proportional to 2,076,998.60, 3,115,497.90 and 1,275,681.80 is: 1,913,522.70
Step by Step Solution
- Step 1: Write the proportion equation
2,076,998.60 : 3,115,497.90 = 1,275,681.80 : x - Step 2: Convert to fraction form
2,076,998.60/3,115,497.90 = 1,275,681.80/x - Step 3: Cross multiply
2,076,998.60x = 3,115,497.90 × 1,275,681.80 - Step 4: Simplify right side
2,076,998.60x = 3,974,383,968,968.22 - Step 5: Solve for x
x = 3,974,383,968,968.22/2,076,998.60 - Step 6: Final answer
x = 1,913,522.70
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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.