Finding the Fourth Proportional to 1,289,406.99, 1,933,999.09 and 436,460.36
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Solution
The fourth proportional to 1,289,406.99, 1,933,999.09 and 436,460.36 is: 654,652.83
Step by Step Solution
- Step 1: Write the proportion equation
1,289,406.99 : 1,933,999.09 = 436,460.36 : x - Step 2: Convert to fraction form
1,289,406.99/1,933,999.09 = 436,460.36/x - Step 3: Cross multiply
1,289,406.99x = 1,933,999.09 × 436,460.36 - Step 4: Simplify right side
1,289,406.99x = 844,113,939,061.07 - Step 5: Solve for x
x = 844,113,939,061.07/1,289,406.99 - Step 6: Final answer
x = 654,652.83
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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.