Finding the Fourth Proportional to 1,384,693.70, 2,072,432.55 and 1,004,533.70
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Solution
The fourth proportional to 1,384,693.70, 2,072,432.55 and 1,004,533.70 is: 1,503,457.65
Step by Step Solution
- Step 1: Write the proportion equation
1,384,693.70 : 2,072,432.55 = 1,004,533.70 : x - Step 2: Convert to fraction form
1,384,693.70/2,072,432.55 = 1,004,533.70/x - Step 3: Cross multiply
1,384,693.70x = 2,072,432.55 × 1,004,533.70 - Step 4: Simplify right side
1,384,693.70x = 2,081,828,337,451.94 - Step 5: Solve for x
x = 2,081,828,337,451.94/1,384,693.70 - Step 6: Final answer
x = 1,503,457.65
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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.