Finding the Fourth Proportional to 912,116.08, 1,368,469.44 and 438,739.84
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Solution
The fourth proportional to 912,116.08, 1,368,469.44 and 438,739.84 is: 658,251.81
Step by Step Solution
- Step 1: Write the proportion equation
912,116.08 : 1,368,469.44 = 438,739.84 : x - Step 2: Convert to fraction form
912,116.08/1,368,469.44 = 438,739.84/x - Step 3: Cross multiply
912,116.08x = 1,368,469.44 × 438,739.84 - Step 4: Simplify right side
912,116.08x = 600,402,063,150.49 - Step 5: Solve for x
x = 600,402,063,150.49/912,116.08 - Step 6: Final answer
x = 658,251.81
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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.