Finding the Fourth Proportional to 919,169.66, 1,378,752.42 and 437,936.70
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Solution
The fourth proportional to 919,169.66, 1,378,752.42 and 437,936.70 is: 656,904.07
Step by Step Solution
- Step 1: Write the proportion equation
919,169.66 : 1,378,752.42 = 437,936.70 : x - Step 2: Convert to fraction form
919,169.66/1,378,752.42 = 437,936.70/x - Step 3: Cross multiply
919,169.66x = 1,378,752.42 × 437,936.70 - Step 4: Simplify right side
919,169.66x = 603,806,284,931.81 - Step 5: Solve for x
x = 603,806,284,931.81/919,169.66 - Step 6: Final answer
x = 656,904.07
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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.