Finding the Fourth Proportional to 839,124.70, 1,258,687.05 and 484,830.70
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Solution
The fourth proportional to 839,124.70, 1,258,687.05 and 484,830.70 is: 727,246.05
Step by Step Solution
- Step 1: Write the proportion equation
839,124.70 : 1,258,687.05 = 484,830.70 : x - Step 2: Convert to fraction form
839,124.70/1,258,687.05 = 484,830.70/x - Step 3: Cross multiply
839,124.70x = 1,258,687.05 × 484,830.70 - Step 4: Simplify right side
839,124.70x = 610,250,123,532.44 - Step 5: Solve for x
x = 610,250,123,532.44/839,124.70 - Step 6: Final answer
x = 727,246.05
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1.5x scale
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.