Finding the Fourth Proportional to 522,461.28, 783,691.11 and 344,926.70
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Solution
The fourth proportional to 522,461.28, 783,691.11 and 344,926.70 is: 517,389.51
Step by Step Solution
- Step 1: Write the proportion equation
522,461.28 : 783,691.11 = 344,926.70 : x - Step 2: Convert to fraction form
522,461.28/783,691.11 = 344,926.70/x - Step 3: Cross multiply
522,461.28x = 783,691.11 × 344,926.70 - Step 4: Simplify right side
522,461.28x = 270,315,984,473.18 - Step 5: Solve for x
x = 270,315,984,473.18/522,461.28 - Step 6: Final answer
x = 517,389.51
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1.5x scale
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.