Finding the Fourth Proportional to 804,938.70, 1,207,408.05 and 793,128.90
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Solution
The fourth proportional to 804,938.70, 1,207,408.05 and 793,128.90 is: 1,189,693.35
Step by Step Solution
- Step 1: Write the proportion equation
804,938.70 : 1,207,408.05 = 793,128.90 : x - Step 2: Convert to fraction form
804,938.70/1,207,408.05 = 793,128.90/x - Step 3: Cross multiply
804,938.70x = 1,207,408.05 × 793,128.90 - Step 4: Simplify right side
804,938.70x = 957,630,218,547.65 - Step 5: Solve for x
x = 957,630,218,547.65/804,938.70 - Step 6: Final answer
x = 1,189,693.35
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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.