Finding the Fourth Proportional to 1,919,122.60, 2,879,072.70 and 657,077.80
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Solution
The fourth proportional to 1,919,122.60, 2,879,072.70 and 657,077.80 is: 985,749.82
Step by Step Solution
- Step 1: Write the proportion equation
1,919,122.60 : 2,879,072.70 = 657,077.80 : x - Step 2: Convert to fraction form
1,919,122.60/2,879,072.70 = 657,077.80/x - Step 3: Cross multiply
1,919,122.60x = 2,879,072.70 × 657,077.80 - Step 4: Simplify right side
1,919,122.60x = 1,891,774,755,756.06 - Step 5: Solve for x
x = 1,891,774,755,756.06/1,919,122.60 - Step 6: Final answer
x = 985,749.82
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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.