Finding the Fourth Proportional to 4,680,285.60, 7,018,585.20 and 1,686,928.80
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Solution
The fourth proportional to 4,680,285.60, 7,018,585.20 and 1,686,928.80 is: 2,529,728.85
Step by Step Solution
- Step 1: Write the proportion equation
4,680,285.60 : 7,018,585.20 = 1,686,928.80 : x - Step 2: Convert to fraction form
4,680,285.60/7,018,585.20 = 1,686,928.80/x - Step 3: Cross multiply
4,680,285.60x = 7,018,585.20 × 1,686,928.80 - Step 4: Simplify right side
4,680,285.60x = 11,839,853,509,133.76 - Step 5: Solve for x
x = 11,839,853,509,133.76/4,680,285.60 - Step 6: Final answer
x = 2,529,728.85
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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.