Finding the Fourth Proportional to 1,586,420.66, 2,378,736.74 and 521,176.70
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Solution
The fourth proportional to 1,586,420.66, 2,378,736.74 and 521,176.70 is: 781,471.27
Step by Step Solution
- Step 1: Write the proportion equation
1,586,420.66 : 2,378,736.74 = 521,176.70 : x - Step 2: Convert to fraction form
1,586,420.66/2,378,736.74 = 521,176.70/x - Step 3: Cross multiply
1,586,420.66x = 2,378,736.74 × 521,176.70 - Step 4: Simplify right side
1,586,420.66x = 1,239,742,164,321.96 - Step 5: Solve for x
x = 1,239,742,164,321.96/1,586,420.66 - Step 6: Final answer
x = 781,471.27
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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.