Finding the Fourth Proportional to 1,045,973.99, 1,567,477.78 and 438,107.27
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Solution
The fourth proportional to 1,045,973.99, 1,567,477.78 and 438,107.27 is: 656,539.65
Step by Step Solution
- Step 1: Write the proportion equation
1,045,973.99 : 1,567,477.78 = 438,107.27 : x - Step 2: Convert to fraction form
1,045,973.99/1,567,477.78 = 438,107.27/x - Step 3: Cross multiply
1,045,973.99x = 1,567,477.78 × 438,107.27 - Step 4: Simplify right side
1,045,973.99x = 686,723,402,048.80 - Step 5: Solve for x
x = 686,723,402,048.80/1,045,973.99 - Step 6: Final answer
x = 656,539.65
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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.