Finding the Fourth Proportional to 2,141,226.90, 2,954,620.80 and 1,223,515.53
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Solution
The fourth proportional to 2,141,226.90, 2,954,620.80 and 1,223,515.53 is: 1,688,295.82
Step by Step Solution
- Step 1: Write the proportion equation
2,141,226.90 : 2,954,620.80 = 1,223,515.53 : x - Step 2: Convert to fraction form
2,141,226.90/2,954,620.80 = 1,223,515.53/x - Step 3: Cross multiply
2,141,226.90x = 2,954,620.80 × 1,223,515.53 - Step 4: Simplify right side
2,141,226.90x = 3,615,024,434,061.02 - Step 5: Solve for x
x = 3,615,024,434,061.02/2,141,226.90 - Step 6: Final answer
x = 1,688,295.82
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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.