Finding the Fourth Proportional to 1,412,709.54, 1,949,563.53 and 768,134.09
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Solution
The fourth proportional to 1,412,709.54, 1,949,563.53 and 768,134.09 is: 1,060,038.29
Step by Step Solution
- Step 1: Write the proportion equation
1,412,709.54 : 1,949,563.53 = 768,134.09 : x - Step 2: Convert to fraction form
1,412,709.54/1,949,563.53 = 768,134.09/x - Step 3: Cross multiply
1,412,709.54x = 1,949,563.53 × 768,134.09 - Step 4: Simplify right side
1,412,709.54x = 1,497,526,208,013.74 - Step 5: Solve for x
x = 1,497,526,208,013.74/1,412,709.54 - Step 6: Final answer
x = 1,060,038.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.