Finding the Fourth Proportional to 1,970,652.11, 2,720,415.40 and 1,154,742.56
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Solution
The fourth proportional to 1,970,652.11, 2,720,415.40 and 1,154,742.56 is: 1,594,081.17
Step by Step Solution
- Step 1: Write the proportion equation
1,970,652.11 : 2,720,415.40 = 1,154,742.56 : x - Step 2: Convert to fraction form
1,970,652.11/2,720,415.40 = 1,154,742.56/x - Step 3: Cross multiply
1,970,652.11x = 2,720,415.40 × 1,154,742.56 - Step 4: Simplify right side
1,970,652.11x = 3,141,379,423,883.63 - Step 5: Solve for x
x = 3,141,379,423,883.63/1,970,652.11 - Step 6: Final answer
x = 1,594,081.17
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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.