Finding the Fourth Proportional to 1,586,420.16, 2,378,736 and 521,176.20
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Solution
The fourth proportional to 1,586,420.16, 2,378,736 and 521,176.20 is: 781,470.52
Step by Step Solution
- Step 1: Write the proportion equation
1,586,420.16 : 2,378,736 = 521,176.20 : x - Step 2: Convert to fraction form
1,586,420.16/2,378,736 = 521,176.20/x - Step 3: Cross multiply
1,586,420.16x = 2,378,736 × 521,176.20 - Step 4: Simplify right side
1,586,420.16x = 1,239,740,589,283.20 - Step 5: Solve for x
x = 1,239,740,589,283.20/1,586,420.16 - Step 6: Final answer
x = 781,470.52
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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.