Finding the Fourth Proportional to 2,190,928.19, 3,023,425.08 and 1,224,065.70
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Solution
The fourth proportional to 2,190,928.19, 3,023,425.08 and 1,224,065.70 is: 1,689,179.48
Step by Step Solution
- Step 1: Write the proportion equation
2,190,928.19 : 3,023,425.08 = 1,224,065.70 : x - Step 2: Convert to fraction form
2,190,928.19/3,023,425.08 = 1,224,065.70/x - Step 3: Cross multiply
2,190,928.19x = 3,023,425.08 × 1,224,065.70 - Step 4: Simplify right side
2,190,928.19x = 3,700,870,936,947.76 - Step 5: Solve for x
x = 3,700,870,936,947.76/2,190,928.19 - Step 6: Final answer
x = 1,689,179.48
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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.