Finding the Fourth Proportional to 724,946.88, 1,000,505.07 and 438,624.84
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Solution
The fourth proportional to 724,946.88, 1,000,505.07 and 438,624.84 is: 605,349.70
Step by Step Solution
- Step 1: Write the proportion equation
724,946.88 : 1,000,505.07 = 438,624.84 : x - Step 2: Convert to fraction form
724,946.88/1,000,505.07 = 438,624.84/x - Step 3: Cross multiply
724,946.88x = 1,000,505.07 × 438,624.84 - Step 4: Simplify right side
724,946.88x = 438,846,376,247.94 - Step 5: Solve for x
x = 438,846,376,247.94/724,946.88 - Step 6: Final answer
x = 605,349.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.