Finding the Fourth Proportional to 738,013.84, 1,018,478.79 and 415,704.71
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Solution
The fourth proportional to 738,013.84, 1,018,478.79 and 415,704.71 is: 573,683.60
Step by Step Solution
- Step 1: Write the proportion equation
738,013.84 : 1,018,478.79 = 415,704.71 : x - Step 2: Convert to fraction form
738,013.84/1,018,478.79 = 415,704.71/x - Step 3: Cross multiply
738,013.84x = 1,018,478.79 × 415,704.71 - Step 4: Simplify right side
738,013.84x = 423,386,432,584.30 - Step 5: Solve for x
x = 423,386,432,584.30/738,013.84 - Step 6: Final answer
x = 573,683.60
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1.5x scale
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.