Finding the Fourth Proportional to 1,685,414.90, 2,528,122.35 and 487,376.30
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Solution
The fourth proportional to 1,685,414.90, 2,528,122.35 and 487,376.30 is: 731,064.45
Step by Step Solution
- Step 1: Write the proportion equation
1,685,414.90 : 2,528,122.35 = 487,376.30 : x - Step 2: Convert to fraction form
1,685,414.90/2,528,122.35 = 487,376.30/x - Step 3: Cross multiply
1,685,414.90x = 2,528,122.35 × 487,376.30 - Step 4: Simplify right side
1,685,414.90x = 1,232,146,916,890.31 - Step 5: Solve for x
x = 1,232,146,916,890.31/1,685,414.90 - Step 6: Final answer
x = 731,064.45
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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.