Finding the Fourth Proportional to 1,125,549.75, 1,553,406.98 and 642,004.23
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Solution
The fourth proportional to 1,125,549.75, 1,553,406.98 and 642,004.23 is: 886,050.44
Step by Step Solution
- Step 1: Write the proportion equation
1,125,549.75 : 1,553,406.98 = 642,004.23 : x - Step 2: Convert to fraction form
1,125,549.75/1,553,406.98 = 642,004.23/x - Step 3: Cross multiply
1,125,549.75x = 1,553,406.98 × 642,004.23 - Step 4: Simplify right side
1,125,549.75x = 997,293,848,861.50 - Step 5: Solve for x
x = 997,293,848,861.50/1,125,549.75 - Step 6: Final answer
x = 886,050.44
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1.5x scale
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.