Finding the Fourth Proportional to 1,372,285.68, 1,889,526.96 and 1,219,058.16
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Solution
The fourth proportional to 1,372,285.68, 1,889,526.96 and 1,219,058.16 is: 1,678,544.99
Step by Step Solution
- Step 1: Write the proportion equation
1,372,285.68 : 1,889,526.96 = 1,219,058.16 : x - Step 2: Convert to fraction form
1,372,285.68/1,889,526.96 = 1,219,058.16/x - Step 3: Cross multiply
1,372,285.68x = 1,889,526.96 × 1,219,058.16 - Step 4: Simplify right side
1,372,285.68x = 2,303,443,259,127.99 - Step 5: Solve for x
x = 2,303,443,259,127.99/1,372,285.68 - Step 6: Final answer
x = 1,678,544.99
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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.