Finding the Fourth Proportional to 804,573.70, 1,207,638.15 and 489,645.70
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Solution
The fourth proportional to 804,573.70, 1,207,638.15 and 489,645.70 is: 734,941.78
Step by Step Solution
- Step 1: Write the proportion equation
804,573.70 : 1,207,638.15 = 489,645.70 : x - Step 2: Convert to fraction form
804,573.70/1,207,638.15 = 489,645.70/x - Step 3: Cross multiply
804,573.70x = 1,207,638.15 × 489,645.70 - Step 4: Simplify right side
804,573.70x = 591,314,827,303.46 - Step 5: Solve for x
x = 591,314,827,303.46/804,573.70 - Step 6: Final answer
x = 734,941.78
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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.