Finding the Fourth Proportional to 1,845,644.70, 2,768,855.85 and 780,138.30
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Solution
The fourth proportional to 1,845,644.70, 2,768,855.85 and 780,138.30 is: 1,170,371.79
Step by Step Solution
- Step 1: Write the proportion equation
1,845,644.70 : 2,768,855.85 = 780,138.30 : x - Step 2: Convert to fraction form
1,845,644.70/2,768,855.85 = 780,138.30/x - Step 3: Cross multiply
1,845,644.70x = 2,768,855.85 × 780,138.30 - Step 4: Simplify right side
1,845,644.70x = 2,160,090,495,764.06 - Step 5: Solve for x
x = 2,160,090,495,764.06/1,845,644.70 - Step 6: Final answer
x = 1,170,371.79
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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.