Finding the Fourth Proportional to 1,209,048.96, 1,668,487.44 and 665,173.08
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Solution
The fourth proportional to 1,209,048.96, 1,668,487.44 and 665,173.08 is: 917,938.78
Step by Step Solution
- Step 1: Write the proportion equation
1,209,048.96 : 1,668,487.44 = 665,173.08 : x - Step 2: Convert to fraction form
1,209,048.96/1,668,487.44 = 665,173.08/x - Step 3: Cross multiply
1,209,048.96x = 1,668,487.44 × 665,173.08 - Step 4: Simplify right side
1,209,048.96x = 1,109,832,929,406.12 - Step 5: Solve for x
x = 1,109,832,929,406.12/1,209,048.96 - Step 6: Final answer
x = 917,938.78
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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.