Finding the Fourth Proportional to 892,705.05, 1,338,794.73 and 487,432.08
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Solution
The fourth proportional to 892,705.05, 1,338,794.73 and 487,432.08 is: 731,004.60
Step by Step Solution
- Step 1: Write the proportion equation
892,705.05 : 1,338,794.73 = 487,432.08 : x - Step 2: Convert to fraction form
892,705.05/1,338,794.73 = 487,432.08/x - Step 3: Cross multiply
892,705.05x = 1,338,794.73 × 487,432.08 - Step 4: Simplify right side
892,705.05x = 652,571,499,936.94 - Step 5: Solve for x
x = 652,571,499,936.94/892,705.05 - Step 6: Final answer
x = 731,004.60
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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.