Finding the Fourth Proportional to 2,912,140.30, 4,368,210.45 and 1,491,724.30
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Solution
The fourth proportional to 2,912,140.30, 4,368,210.45 and 1,491,724.30 is: 2,237,586.45
Step by Step Solution
- Step 1: Write the proportion equation
2,912,140.30 : 4,368,210.45 = 1,491,724.30 : x - Step 2: Convert to fraction form
2,912,140.30/4,368,210.45 = 1,491,724.30/x - Step 3: Cross multiply
2,912,140.30x = 4,368,210.45 × 1,491,724.30 - Step 4: Simplify right side
2,912,140.30x = 6,516,165,675,778.94 - Step 5: Solve for x
x = 6,516,165,675,778.94/2,912,140.30 - Step 6: Final answer
x = 2,237,586.45
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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.