Finding the Fourth Proportional to 566,331.31, 781,536.76 and 311,682.70
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Solution
The fourth proportional to 566,331.31, 781,536.76 and 311,682.70 is: 430,121.88
Step by Step Solution
- Step 1: Write the proportion equation
566,331.31 : 781,536.76 = 311,682.70 : x - Step 2: Convert to fraction form
566,331.31/781,536.76 = 311,682.70/x - Step 3: Cross multiply
566,331.31x = 781,536.76 × 311,682.70 - Step 4: Simplify right side
566,331.31x = 243,591,487,506.05 - Step 5: Solve for x
x = 243,591,487,506.05/566,331.31 - Step 6: Final answer
x = 430,121.88
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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.