Finding the Fourth Proportional to 522,088.70, 783,133.05 and 515,090.30
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Solution
The fourth proportional to 522,088.70, 783,133.05 and 515,090.30 is: 772,635.45
Step by Step Solution
- Step 1: Write the proportion equation
522,088.70 : 783,133.05 = 515,090.30 : x - Step 2: Convert to fraction form
522,088.70/783,133.05 = 515,090.30/x - Step 3: Cross multiply
522,088.70x = 783,133.05 × 515,090.30 - Step 4: Simplify right side
522,088.70x = 403,384,237,664.42 - Step 5: Solve for x
x = 403,384,237,664.42/522,088.70 - Step 6: Final answer
x = 772,635.45
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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.