Finding the Fourth Proportional to 892,768.74, 1,338,810.41 and 380,108.84
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Solution
The fourth proportional to 892,768.74, 1,338,810.41 and 380,108.84 is: 570,017.34
Step by Step Solution
- Step 1: Write the proportion equation
892,768.74 : 1,338,810.41 = 380,108.84 : x - Step 2: Convert to fraction form
892,768.74/1,338,810.41 = 380,108.84/x - Step 3: Cross multiply
892,768.74x = 1,338,810.41 × 380,108.84 - Step 4: Simplify right side
892,768.74x = 508,893,664,043.13 - Step 5: Solve for x
x = 508,893,664,043.13/892,768.74 - Step 6: Final answer
x = 570,017.34
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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.